691.57% is the change from 83 to 657
Calculation steps:
[( 657 - 83 ) ÷ 83] x 100 = 691.57%
Formula
Percentage change = [(657 - 83) / 83] x 100
Subtract the new number by the original number
657 - 83 = 574
574 ÷ 83 = 6.9156626506024095
6.9156626506024095 x 100 = 691.57%