A percentage calculator you type in plain words
Written by Adrian Viziteu. Every example was run through Ratio 0.6.4 that day.
Is it 20% of the price, 20% off, or 20% on top? Percentages trip everyone up. In Ratio, you write the question the way you'd ask it, and the answer appears right beside it.
The everyday percentages
| 20% of 150 | 30 |
| 150 + 20% | 180 |
| 150 - 10% | 135 |
| 12% of 3,400 | 408 |
What percent is it?
Ask for the share, the whole, or the change between two numbers.
| 50 is what % of 200 | 25% |
| 30 is 15% of what | 200 |
| change(80, 100) | 25% |
| change(100, 80) | -20% |
Discounts and tips
Name a value once and reuse it on the next line. Change the bill and the tip follows.
| 49.99 - 25% | 37.49 |
| 120 is 20% off what | 150 |
| tip = 18% of 64 | 11.52 |
| 64 + tip | 75.52 |
Margins, markups and VAT
Margin and markup are different percentages of the same two prices. Ratio has both, and adds or removes VAT at your region's rate. More in the VAT calculator guide.
| margin(80, 100) | 20% |
| markup(80, 100) | 25% |
| 80 + 25% margin | 106.6667 |
| 1000 + VAT | 1,190 |
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Questions
How do I calculate a percentage of a number? Type it in words, like 20% of 150. Ratio shows 30 next to the line.
How do I find what percent one number is of another? Write 50 is what % of 200. The answer is 25%.
How do I calculate percentage change? Use change(80, 100) for the change from 80 to 100, which is 25%. From 100 to 80 it is -20%.
How do I find the original price before a discount? Write 120 is 20% off what. The price before the discount was 150.