912.73% is the change from 55 to 557
Calculation steps:
[( 557 - 55 ) ÷ 55] x 100 = 912.73%
Formula
Percentage change = [(557 - 55) / 55] x 100
Subtract the new number by the original number
557 - 55 = 502
502 ÷ 55 = 9.127272727272727
9.127272727272727 x 100 = 912.73%