572.53% is the change from 91 to 612
Calculation steps:
[( 612 - 91 ) ÷ 91] x 100 = 572.53%
Formula
Percentage change = [(612 - 91) / 91] x 100
Subtract the new number by the original number
612 - 91 = 521
521 ÷ 91 = 5.725274725274725
5.725274725274725 x 100 = 572.53%