Percentage Solver is a user-friendly iPhone app developed by Francesco Grassi. As its name suggests, it is a powerful percentage calculator that provides a simple solution to all your percentage-related problems.

With Percentage Solver, you can effortlessly solve calculations involving percentages. The app not only gives you the final result, but also displays the complete calculation process, allowing you to understand how the solution is derived.

Using the app is straightforward - just input two values, and the third value will be automatically calculated. This makes it an ideal tool for students who are learning about percentages or anyone who needs quick and accurate percentage calculations.

In addition to its calculation capabilities, Percentage Solver also allows you to share the complete solution with others, making it convenient for collaborative work or sharing results with colleagues.

The app offers a range of calculations, including calculating the total based on a part and percentage, calculating the part based on a total and percentage, and calculating the percentage based on a total and part. It also provides functionality for calculating initial and final values based on increase/decrease and percentage.

Percentage Solver is a must-have app for anyone who frequently deals with percentage calculations. Its simplicity and comprehensive features make it an invaluable tool for students, professionals, and anyone in need of accurate percentage calculations.