100% Easy will help you simplify complicated calculations with percentages by doing it in an agile and fun way.
 With this tool you can do all kinds of calculations related to percentages just by selecting the calculation option you want. With the help of the "Situation" tab, you can identify what type of calculation you need for each occasion, through simple examples.

* Add or discount percentage to a number.
* Calculate the total when you only have a percentage represented.
* Find out what percentage increased a product or service, having
  as data, the last two prices.
* Calculate what percentage represents one number from another.
  And much more...

If for study or work issues you must calculate percentages frequently, you will love this application.