Delta Calc

Welcome to the speedy and delightful to use percent change calculator. Solve for any of the three values within the percent change formula. Quit Googling “percent change formula” and use this handy dandy app instead.

This calculator can solve for the a, b, or c value in the percent change formula ((b - a) / a) * 100 = c.

Easily calculate ROI or figure out what you need to place your next limit order at in order to make 1,000% (or whatever magical number you can think of).

PS: The calculator can also solve for the a, b, or c value in the value change formula b - a = c.

This app requires iOS 17 or later to download.