Calculation
Percentage Calculator
Three percentage questions — what is X% of Y, X is what percent of Y, and the increase or decrease from one value to another — plus discount, sales tax, and VAT calculators. Enter any two prices and the missing rate, amount, and total are filled in.
Quick start
- 1
Pick the question
What is X% of Y, X is what percent of Y, or the change from one value to another.
- 2
Enter the two known numbers
The missing percent or amount is filled in.
- 3
Or open discount
Fill any two of original price, discount percent, amount saved, and final price.
- 4
Or open tax
Start from a region or country rate, or type your own, then solve the price before tax, the tax, or the total.
Features
Three percentage questions
Find a part of a whole, the percent one number is of another, or the change between two values.
Discount
Fill any two of original price, discount percent, amount saved, or final price.
Sales tax and VAT
Start from a region or country rate, or type your own, then solve the price before tax, the tax, or the total.
Specifications
- Percentage
- Of, ratio, increase or decrease
- Discount
- Any two of price, percent, amount, final
- Tax
- Sales tax regions and VAT countries
- Privacy
- Processed on the toolbox API
Use cases
- Find a discount from two prices.
- Apply a state sales tax or a VAT rate.
- Measure the percent change between two values.
Frequently asked questions
Do I need all four discount fields?
No. Any two of price, percent, amount, and final price are enough.