Percentage

Comprehensive percentage calculators: basics, profit/loss, discounts, tax, and more.

Calculate final price after single or double discounts.

Calculate percentage increase or decrease between two values.

Calculate percentage error between measured and actual values.

Calculate a value after increasing it by a percentage.

Calculate what X% of a number is.

Calculate profit percentage (markup) and margin from cost and selling price.

Find the original price before tax was added.

Calculate the result of two consecutive percentage changes.

Calculate tax amount and total price with tax.

Calculate what percentage one number is of another.