The easiest way to calculate how much of an discount to give how many percent something is automagically add sales tax or VAT to a price or calculate the interest you're going to earn on your money in the bank.

Creating a new campaign for your store and need to know how much each price is after applying a discount? Look no more! Also supports calculating Contribution Margin and Contribution Margin Ratio for products!

You know how much you paid and what the original price was but can't remember the formula for calculating the discount in percent? We can help!

Easy to navigate and with a layout and language that actually asks you about the values for the problem you're trying to solve instead of giving you all the knobs to twist yourself.