812.73% is the change from 55 to 502
Calculation steps:
[( 502 - 55 ) ÷ 55] x 100 = 812.73%
Formula
Percentage change = [(502 - 55) / 55] x 100
Subtract the new number by the original number
502 - 55 = 447
447 ÷ 55 = 8.127272727272727
8.127272727272727 x 100 = 812.73%