500% is the change from 99 to 594
Calculation steps:
[( 594 - 99 ) ÷ 99] x 100 = 500%
Formula
Percentage change = [(594 - 99) / 99] x 100
Subtract the new number by the original number
594 - 99 = 495
495 ÷ 99 = 5
5 x 100 = 500%
Example