Percentage Calculator — Calculate Any Percentage
Calculate percentages instantly. Free online percentage calculator — what is X% of Y? What % is X of Y? Percentage increase/decrease and more.
How to Use
- Select the type of percentage calculation from the dropdown.
- "What is X% of Y" — enter percentage and total. "What % is X of Y" — enter value and total.
- "Percentage Change" — enter original value and new value. Click Calculate.
Formula
What is X% of Y? → Answer = (X/100) × Y
What % is X of Y? → Answer = (X/Y) × 100
Percentage Change → ((New − Old) / Old) × 100
Example Calculation
Examples of common percentage calculations
| Question | Calculation | Answer |
|---|---|---|
| What is 20% of 500? | (20/100) × 500 | 100 |
| What % is 75 of 300? | (75/300) × 100 | 25% |
| % change from 80 to 100? | ((100−80)/80) × 100 | 25% increase |
Frequently Asked Questions
Percentage = (Part / Whole) × 100. Example: 15 out of 60 = (15/60) × 100 = 25%.
Multiply the number by X and divide by 100. Example: 30% of 400 = 400 × 30 / 100 = 120.
Percentage Increase = ((New Value − Old Value) / Old Value) × 100. Example: From 50 to 65 = ((65−50)/50) × 100 = 30% increase.
Multiply the number by (1 + percentage/100). Example: Add 18% GST to ₹1,000 = 1000 × 1.18 = ₹1,180.
If interest rate goes from 5% to 8%: the change is 3 percentage points but a 60% increase in the rate. These are different measures.