All-in-One Percentage Calculator
Calculate any percentage instantly — what is X% of Y, percentage change, increase, decrease, ratio to percent, and more. Includes 100+ real-world solved examples.
What is X% of Y?
Find a percentage of any number. Example: What is 15% of 200?
Percentage Change Calculator
Find % change between two values. Works for increase or decrease.
Percentage Increase Calculator
Increase a number by a given percentage. Example: 500 increased by 20%
Percentage Decrease Calculator
Decrease a number by a given percentage. Example: 800 decreased by 25%
X is What Percent of Y?
Find what percentage one number is of another. Example: 30 is what % of 150?
Tip Calculator
Calculate tip amount and total bill per person.
Discount Calculator
Find the price after discount. Example: ₹2000 with 30% off
Marks / Grade Percentage Calculator
Calculate your exam or assignment score as a percentage.
What is X% of Y?
Find a fraction of a number. Used in discounts, tax, marks, tips.
Result = (X / 100) × Y
X is What % of Y?
Convert a ratio to a percentage. Used in score comparison, ratios.
% = (X / Y) × 100
Percentage Change
Measure change between two values. Works for increase or decrease.
% Change = ((New - Old) / |Old|) × 100
Percentage 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)) × 100
Tip Calculation
Calculate gratuity on a restaurant or service bill.
Tip = Bill × (Tip% / 100)