Percentage Calculator (%)
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What is the percentage change
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▲ Increase from 80 to 100
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Increase amount: 100
Reduction amount: 200
Tip Calculator
per person
Tip: 180 | Total: 1380 | 4 people × ₹345 = ₹1380
Discount Calculator
price after discount
You save ₹600 on ₹2000
Marks / Grade Percentage Calculator
%
Grade: A (First Class)
📊 Common Marks to Percentage Conversions (Quick Answer Chart)
Direct Formula: Percentage (%) = (Marks Obtained ÷ Total Marks) × 100.
For example, 515 out of 600 is 85.83% [(515 ÷ 600) × 100]. Similarly, 465 out of 600 equals 77.50%, and 450 out of 500 is exactly 90.00%.
For example, 515 out of 600 is 85.83% [(515 ÷ 600) × 100]. Similarly, 465 out of 600 equals 77.50%, and 450 out of 500 is exactly 90.00%.
| Marks Obtained | Total Marks | Calculation Formula | Percentage |
|---|---|---|---|
| 540 | 600 | (540 ÷ 600) × 100 | 90.00% |
| 515 | 600 | (515 ÷ 600) × 100 | 85.83% |
| 495 | 600 | (495 ÷ 600) × 100 | 82.50% |
| 480 | 600 | (480 ÷ 600) × 100 | 80.00% |
| 465 | 600 | (465 ÷ 600) × 100 | 77.50% |
| 450 | 600 | (450 ÷ 600) × 100 | 75.00% |
| 420 | 600 | (420 ÷ 600) × 100 | 70.00% |
| 390 | 600 | (390 ÷ 600) × 100 | 65.00% |
| 360 | 600 | (360 ÷ 600) × 100 | 60.00% |
| 475 | 500 | (475 ÷ 500) × 100 | 95.00% |
| 450 | 500 | (450 ÷ 500) × 100 | 90.00% |
| 425 | 500 | (425 ÷ 500) × 100 | 85.00% |
| 400 | 500 | (400 ÷ 500) × 100 | 80.00% |
| 380 | 500 | (380 ÷ 500) × 100 | 76.00% |
| 350 | 500 | (350 ÷ 500) × 100 | 70.00% |
| 300 | 500 | (300 ÷ 500) × 100 | 60.00% |
| 680 | 800 | (680 ÷ 800) × 100 | 85.00% |
| 600 | 800 | (600 ÷ 800) × 100 | 75.00% |
| 850 | 1000 | (850 ÷ 1000) × 100 | 85.00% |
| 750 | 1000 | (750 ÷ 1000) × 100 | 75.00% |
100+ Percentage Examples
| Type | Question | Answer | Step-by-step Solution |
|---|---|---|---|
| Basic % | What is 10% of 100? | 10 | 10 ÷ 100 = 0.1 → 0.1 × 100 = 10 |
| Basic % | What is 20% of 500? | 100 | 20 ÷ 100 = 0.2 → 0.2 × 500 = 100 |
| Basic % | What is 15% of 200? | 30 | 15 ÷ 100 = 0.15 → 0.15 × 200 = 30 |
| Basic % | What is 25% of 400? | 100 | 25 ÷ 100 = 0.25 → 0.25 × 400 = 100 |
| Basic % | What is 5% of 1000? | 50 | 5 ÷ 100 = 0.05 → 0.05 × 1000 = 50 |
| Basic % | What is 30% of 300? | 90 | 30 ÷ 100 = 0.3 → 0.3 × 300 = 90 |
| Basic % | What is 50% of 80? | 40 | 50 ÷ 100 = 0.5 → 0.5 × 80 = 40 |
| Basic % | What is 75% of 200? | 150 | 75 ÷ 100 = 0.75 → 0.75 × 200 = 150 |
| Basic % | What is 1% of 5000? | 50 | 1 ÷ 100 = 0.01 → 0.01 × 5000 = 50 |
| Basic % | What is 40% of 250? | 100 | 40 ÷ 100 = 0.4 → 0.4 × 250 = 100 |
| Basic % | What is 12% of 600? | 72 | 12 ÷ 100 = 0.12 → 0.12 × 600 = 72 |
| Basic % | What is 8% of 750? | 60 | 8 ÷ 100 = 0.08 → 0.08 × 750 = 60 |
| Basic % | What is 35% of 140? | 49 | 35 ÷ 100 = 0.35 → 0.35 × 140 = 49 |
| Basic % | What is 60% of 450? | 270 | 60 ÷ 100 = 0.6 → 0.6 × 450 = 270 |
| Basic % | What is 2.5% of 2000? | 50 | 2.5 ÷ 100 = 0.025 → 0.025 × 2000 = 50 |
| % Change | Percentage change from 80 to 100? | 25 | New - Old = 100 - 80 = 20 → 20 ÷ 80 = 0.25 → 0.25 × 100 = 25% increase |
| % Change | Percentage change from 200 to 150? | -25 | New - Old = 150 - 200 = -50 → -50 ÷ 200 = -0.25 → -0.25 × 100 = -25% decrease |
| % Change | Percentage change from 50 to 75? | 50 | 75 - 50 = 25 → 25 ÷ 50 = 0.5 → 0.5 × 100 = 50% increase |
| % Change | Percentage change from 1000 to 1200? | 20 | 1200 - 1000 = 200 → 200 ÷ 1000 = 0.2 → 0.2 × 100 = 20% increase |
| % Change | Percentage change from 400 to 320? | -20 | 320 - 400 = -80 → -80 ÷ 400 = -0.2 → -0.2 × 100 = -20% decrease |
| % Change | Percentage change from 25 to 30? | 20 | 30 - 25 = 5 → 5 ÷ 25 = 0.2 → 0.2 × 100 = 20% increase |
| % Change | Percentage change from 600 to 900? | 50 | 900 - 600 = 300 → 300 ÷ 600 = 0.5 → 0.5 × 100 = 50% increase |
| Finance | 18% GST on ₹1000 product? | 180 | 18 ÷ 100 = 0.18 → 0.18 × 1000 = ₹180 GST → Total = ₹1180 |
| Finance | 5% TDS on ₹50,000 salary? | 2500 | 5 ÷ 100 = 0.05 → 0.05 × 50000 = ₹2500 TDS |
| Finance | 10% interest on ₹10,000 loan? | 1000 | 10 ÷ 100 = 0.1 → 0.1 × 10000 = ₹1000 |
| Finance | What is 12% of ₹25,000 salary? | 3000 | 12 ÷ 100 = 0.12 → 0.12 × 25000 = ₹3000 |
| Finance | 3% inflation increase on ₹500? | 515 | 3 ÷ 100 = 0.03 → 500 × 1.03 = ₹515 |
| Finance | 15% return on ₹20,000 investment? | 3000 | 15 ÷ 100 = 0.15 → 0.15 × 20000 = ₹3000 return |
| Finance | 28% GST on ₹5000? | 1400 | 28 ÷ 100 = 0.28 → 0.28 × 5000 = ₹1400 |
| Finance | EMI: 8.5% interest on ₹3,00,000? | 25500 | 8.5 ÷ 100 = 0.085 → 0.085 × 300000 = ₹25,500/year |
| Shopping | 30% discount on ₹1500 shirt? | 1050 | 30 ÷ 100 = 0.3 → Discount = 0.3 × 1500 = ₹450 → Price = 1500 - 450 = ₹1050 |
| Shopping | 50% off on ₹2000 dress? | 1000 | 50 ÷ 100 = 0.5 → Discount = 1000 → Price = ₹1000 |
| Shopping | 20% off on ₹999 shoes? | 799.2 | 20 ÷ 100 = 0.2 → Discount = 0.2 × 999 = ₹199.8 → Price = ₹799.2 |
| Shopping | Flat 40% off on ₹3500? | 2100 | 40 ÷ 100 = 0.4 → Discount = ₹1400 → Price = ₹2100 |
| Shopping | 10% cashback on ₹800 order? | 80 | 10 ÷ 100 = 0.1 → 0.1 × 800 = ₹80 cashback |
| Shopping | Buy 2 get 33% off: ₹600 each? | 198 | 33 ÷ 100 = 0.33 → 0.33 × 600 = ₹198 off per item |
| Shopping | 15% off on ₹12,000 mobile? | 10200 | 15 ÷ 100 = 0.15 → Discount = ₹1800 → Price = ₹10,200 |
| Shopping | Amazon 25% off on ₹4400 item? | 3300 | 25 ÷ 100 = 0.25 → Discount = ₹1100 → Price = ₹3300 |
| Shopping | Flipkart 70% off on ₹1000 item? | 300 | 70 ÷ 100 = 0.7 → Discount = ₹700 → Price = ₹300 |
| Marks/Exam | 420 out of 500 marks = what %? | 84% | 420 ÷ 500 = 0.84 → 0.84 × 100 = 84% → Grade: Distinction |
| Marks/Exam | 360 out of 600 marks = what %? | 60% | 360 ÷ 600 = 0.6 → 0.6 × 100 = 60% → Grade: First Class |
| Marks/Exam | Passed with 45 out of 100? | 45% | 45 ÷ 100 = 0.45 → 0.45 × 100 = 45% |
| Marks/Exam | UPSC score 750 out of 2025? | 37.04% | 750 ÷ 2025 = 0.3704 → × 100 = 37.04% |
| Marks/Exam | JEE: 200 marks out of 300? | 66.67% | 200 ÷ 300 = 0.6667 → × 100 = 66.67% |
| Marks/Exam | 95% needed in 500 marks exam? | 475 | 95 ÷ 100 = 0.95 → 0.95 × 500 = 475 marks needed |
| Marks/Exam | CGPA 8.5 to percentage? | 80.75 | CGPA × 9.5 = 8.5 × 9.5 = 80.75% → (Common university formula) |
| Marks/Exam | Class 10: 485 out of 600? | 80.83% | 485 ÷ 600 = 0.8083 → × 100 = 80.83% |
| Health | Body fat: 18kg fat in 90kg person? | 20% | 18 ÷ 90 = 0.2 → 0.2 × 100 = 20% body fat |
| Health | BMI increase from 22 to 28? | 27.27 | 28 - 22 = 6 → 6 ÷ 22 = 0.2727 → × 100 = 27.27% increase |
| Health | Calorie deficit: 20% of 2000 kcal? | 400 | 20 ÷ 100 = 0.2 → 0.2 × 2000 = 400 kcal deficit |
| Health | Sugar intake 25g of 50g limit? | 50% | 25 ÷ 50 = 0.5 → 0.5 × 100 = 50% of daily limit |
| Health | Protein: 60g from 100g chicken? | 60% | 60 ÷ 100 = 0.6 → 0.6 × 100 = 60% protein |
| Health | Blood oxygen: 96 out of 100? | 96% | 96 ÷ 100 = 0.96 → × 100 = 96% SpO2 |
| Health | Weight lost 8kg from 80kg? | 10% | 8 ÷ 80 = 0.1 → 0.1 × 100 = 10% weight loss |
| Business | Profit margin: ₹200 profit on ₹1000 sale? | 20% | 200 ÷ 1000 = 0.2 → 0.2 × 100 = 20% profit margin |
| Business | Revenue grew from ₹5L to ₹6L? | 20 | 6L - 5L = 1L → 1L ÷ 5L = 0.2 → × 100 = 20% growth |
| Business | Market share: 250 from 1000 customers? | 25% | 250 ÷ 1000 = 0.25 → × 100 = 25% market share |
| Business | Conversion rate: 50 leads from 200? | 25% | 50 ÷ 200 = 0.25 → × 100 = 25% conversion rate |
| Business | Employee attrition: 12 left from 100? | 12% | 12 ÷ 100 = 0.12 → × 100 = 12% attrition |
| Business | Cost reduction from ₹800 to ₹680? | -15 | 680 - 800 = -120 → -120 ÷ 800 = -0.15 → × 100 = -15% cost reduction |
| Business | Ad CTR: 300 clicks from 10,000 views? | 3% | 300 ÷ 10000 = 0.03 → × 100 = 3% CTR |
| Business | What is 22% commission on ₹50,000? | 11000 | 22 ÷ 100 = 0.22 → 0.22 × 50000 = ₹11,000 |
| Everyday | Battery at 35%, needs 65% more? | 65 | 100% - 35% = 65% still needed |
| Everyday | 15% tip on $60 restaurant bill? | 9 | 15 ÷ 100 = 0.15 → 0.15 × 60 = $9 tip → Total = $69 |
| Everyday | 20% tip on $85 bill? | 17 | 20 ÷ 100 = 0.2 → 0.2 × 85 = $17 tip |
| Everyday | Rent increased 8% from ₹15,000? | 16200 | 8 ÷ 100 = 0.08 → 15000 × 1.08 = ₹16,200 |
| Everyday | Salary hike 15% on ₹40,000? | 46000 | 15 ÷ 100 = 0.15 → 40000 × 1.15 = ₹46,000 |
| Everyday | Petrol price 5% hike from ₹102? | 107.1 | 5 ÷ 100 = 0.05 → 102 × 1.05 = ₹107.1 |
| Everyday | Data used: 4GB of 6GB plan? | 66.67% | 4 ÷ 6 = 0.6667 → × 100 = 66.67% used |
| Everyday | Votes: 420 out of 700 total? | 60% | 420 ÷ 700 = 0.6 → × 100 = 60% vote share |
| Everyday | Online class: 18 of 30 students present? | 60% | 18 ÷ 30 = 0.6 → × 100 = 60% attendance |
| Everyday | Fuel efficiency drop 12%: was 20 kmpl? | 17.6 | 12 ÷ 100 = 0.12 → 20 × (1 - 0.12) = 20 × 0.88 = 17.6 kmpl |
| Everyday | Score improved from 65 to 85? | 30.77 | 85 - 65 = 20 → 20 ÷ 65 = 0.3077 → × 100 = 30.77% improvement |
| Everyday | Population grew 2.5% from 1,00,000? | 102500 | 2.5 ÷ 100 = 0.025 → 100000 × 1.025 = 1,02,500 |
| Basic % | What is 100% of 999? | 999 | 100 ÷ 100 = 1 → 1 × 999 = 999 |
| Basic % | What is 0.5% of 10000? | 50 | 0.5 ÷ 100 = 0.005 → 0.005 × 10000 = 50 |
| Basic % | What is 33.33% of 900? | 300 | 33.33 ÷ 100 = 0.3333 → 0.3333 × 900 ≈ 300 |
| Basic % | What is 125% of 80? | 100 | 125 ÷ 100 = 1.25 → 1.25 × 80 = 100 |
| Basic % | 50 is what % of 200? | 25% | 50 ÷ 200 = 0.25 → × 100 = 25% |
| Basic % | 75 is what % of 300? | 25% | 75 ÷ 300 = 0.25 → × 100 = 25% |
| Basic % | 120 is what % of 480? | 25% | 120 ÷ 480 = 0.25 → × 100 = 25% |
| Basic % | 18 is what % of 72? | 25% | 18 ÷ 72 = 0.25 → × 100 = 25% |
| Finance | PPF: 7.1% on ₹1,50,000? | 10650 | 7.1 ÷ 100 = 0.071 → 0.071 × 150000 = ₹10,650 |
| Finance | FD: 6.5% on ₹2,00,000? | 13000 | 6.5 ÷ 100 = 0.065 → 0.065 × 200000 = ₹13,000 |
| Finance | Home loan rate 8.75% on ₹50L? | 437500 | 8.75 ÷ 100 = 0.0875 → 0.0875 × 5000000 = ₹4,37,500/yr |
| Finance | Income tax 20% on ₹8,00,000? | 160000 | 20 ÷ 100 = 0.2 → 0.2 × 800000 = ₹1,60,000 |
| Finance | EPF: 12% of ₹30,000 salary? | 3600 | 12 ÷ 100 = 0.12 → 0.12 × 30000 = ₹3,600 |
| % Change | % change: price ₹45 to ₹54? | 20 | 54 - 45 = 9 → 9 ÷ 45 = 0.2 → × 100 = 20% increase |
| % Change | Stock fell from ₹500 to ₹420? | -16 | 420 - 500 = -80 → -80 ÷ 500 = -0.16 → × 100 = -16% fall |
| % Change | Subscribers: 10K to 15K on YouTube? | 50 | 15000 - 10000 = 5000 → 5000 ÷ 10000 = 0.5 → × 100 = 50% growth |
| % Change | Gold price: ₹55000 to ₹60000 per 10g? | 9.09 | 60000 - 55000 = 5000 → 5000 ÷ 55000 = 0.0909 → × 100 = 9.09% increase |
| Business | ROI: earned ₹12000 on ₹100000? | 12% | 12000 ÷ 100000 = 0.12 → × 100 = 12% ROI |
| Business | Gross margin: cost ₹600, sold ₹1000? | 40% | Revenue - Cost = 1000 - 600 = 400 → 400 ÷ 1000 = 0.4 → × 100 = 40% gross margin |
| Business | Employee bonus 10% of ₹6,00,000 CTC? | 60000 | 10 ÷ 100 = 0.1 → 0.1 × 600000 = ₹60,000 |
| Health | Daily water 2.5L — drank 1.5L? | 60% | 1.5 ÷ 2.5 = 0.6 → × 100 = 60% of daily target |
| Health | Steps goal 10000 — walked 7500? | 75% | 7500 ÷ 10000 = 0.75 → × 100 = 75% of step goal |
| Health | Medicine dose: 400mg of 500mg prescribed? | 80% | 400 ÷ 500 = 0.8 → × 100 = 80% of dose |
| Marks/Exam | NEET: 650 out of 720? | 90.28% | 650 ÷ 720 = 0.9028 → × 100 = 90.28% |
| Marks/Exam | Class 12: 465 out of 500? | 93% | 465 ÷ 500 = 0.93 → × 100 = 93% |
| Marks/Exam | CAT score: 148 out of 200? | 74% | 148 ÷ 200 = 0.74 → × 100 = 74% |
| Basic % | What % is 1 out of 7? | 14.29% | 1 ÷ 7 = 0.1429 → × 100 = 14.29% |
| Basic % | What % is 3 out of 4? | 75% | 3 ÷ 4 = 0.75 → × 100 = 75% |
| Basic % | What % is 2 out of 5? | 40% | 2 ÷ 5 = 0.4 → × 100 = 40% |
| Shopping | Extra 5% off after 20% discount on ₹1000? | 760 | After 20% off: ₹1000 × 0.8 = ₹800 → After extra 5% off: ₹800 × 0.95 = ₹760 |
| Shopping | GST 12% added to ₹850? | 952 | 12 ÷ 100 = 0.12 → 850 × 1.12 = ₹952 |
| Shopping | Effective saving: MRP ₹2500, pay ₹1875? | -25 | 1875 - 2500 = -625 → -625 ÷ 2500 = -0.25 → × 100 = 25% saving |
| Shopping | Loyalty points: 2% of ₹5000 purchase? | 100 | 2 ÷ 100 = 0.02 → 0.02 × 5000 = 100 points/₹100 |
All Percentage Formulas
What is X% of Y?
Find a fraction of a number. Used in discounts, tax, marks, tips.
Result = (X / 100) × YX is What % of Y?
Convert a ratio to a percentage. Used in score comparison, ratios.
% = (X / Y) × 100Percentage Change
Measure change between two values. Works for increase or decrease.
% Change = ((New - Old) / |Old|) × 100Percentage Increase
Add a percentage to a number. Used in salary hikes, inflation.
New = Old × (1 + P/100)Percentage Decrease
Subtract a percentage from a number. Used in discounts, depreciation.
New = Old × (1 - P/100)Reverse Percentage
Find the original number before a percentage was applied.
Original = Final / (1 ± P/100)Percentage Difference
Compare two values symmetrically, neither as a base.
% Diff = (|A-B| / ((A+B)/2)) × 100Tip Calculation
Calculate gratuity on a restaurant or service bill.
Tip = Bill × (Tip% / 100)Frequently Asked Questions
How do I calculate percentage?
Divide the part by the whole and multiply by 100. Formula: (Part ÷ Whole) × 100 = Percentage. Example: 30 is what % of 150? → (30 ÷ 150) × 100 = 20%.
What is the formula for percentage change?
Percentage Change = ((New Value - Old Value) ÷ |Old Value|) × 100. If positive, it's an increase; if negative, it's a decrease.
How to find X% of a number?
Multiply the number by X and divide by 100. Or: Number × (X/100). Example: 20% of 500 = 500 × 0.20 = 100.
How to calculate percentage increase?
New Value = Old Value × (1 + Percentage/100). Example: 500 increased by 20% = 500 × 1.20 = 600.
How to calculate percentage decrease?
New Value = Old Value × (1 - Percentage/100). Example: 800 decreased by 25% = 800 × 0.75 = 600.
How to convert CGPA to percentage?
Most Indian universities use: Percentage = CGPA × 9.5. Example: CGPA 8.0 = 8.0 × 9.5 = 76%.
What is the difference between percentage and percentile?
Percentage is a ratio out of 100 (how much of the whole). Percentile tells you what % of people scored below you. They measure different things.
How to calculate tip percentage?
Tip = Bill Amount × (Tip% ÷ 100). Then split total (Bill + Tip) by number of people for per-person cost.
How to calculate GST amount?
GST Amount = Price × (GST Rate ÷ 100). Total Price = Original Price + GST Amount. For 18% GST on ₹1000: GST = ₹180, Total = ₹1180.
What is percentage difference?
It compares two values symmetrically: |A - B| ÷ ((A + B)/2) × 100. Unlike % change, neither value is treated as the 'original'.