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Percentage Calculator
MathMulti-mode percentage calculator. Find X% of Y, X as % of Y, or % change between values.
ttb run percentage-calculator
Results
25% of 100
25
Remaining (75%)
75
As % of total
25
Quick Reference
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How to Use Percentage Calculator
Choose your calculation type: find what percentage X is of Y, find X percent of Y, or find the percentage increase/decrease between two values. Enter the numbers and the calculator shows the result with the full formula. Handles discounts, markups, tips, and grade calculations.
1
Enter your parameters
Configure the inputs for the Percentage Calculator according to your specific needs.
2
View real-time results
The utility instantly processes your request and displays the calculated outputs directly in your browser.
3
Copy or Download
Click the copy icon next to the final output to instantly grab the result, or export it if applicable.
Frequently Asked Questions
How do I calculate percentage increase?+
Percentage increase = ((New Value - Old Value) / Old Value) × 100. For example, if a price goes from $80 to $100: ((100-80)/80) × 100 = 25% increase.
What is the difference between percentage points and percent?+
If an interest rate goes from 5% to 8%, it increased by 3 percentage points but increased by 60% (3/5 × 100). Percentage points are the arithmetic difference; percent is the relative change.