Percentage Calculators

Calculate percentages, increases, decreases, changes, discounts and more with our free percentage tools.

Calculate what is X% of Y, what percent X is of Y, and more percentage values.

Calculate the percentage increase from one value to another.

Calculate the percentage decrease from one value to another.

Find the original value before a percentage was applied.

Calculate the percentage change between two values, positive or negative.

Convert any fraction to its percentage equivalent with step-by-step explanation.

Calculate the percentage difference between two values using their average as the base, with no directional bias.

Convert a test score to a percentage by dividing the score earned by the total possible points.

Calculate the discount percentage and your savings from the original price and sale price of an item.

Calculate the percent error between an observed (experimental) value and a theoretical (accepted) value.

Calculate the markup percentage from the cost of a product to its selling price.