-9.13% is the change from 657 to 597
Calculation steps:
[( 597 - 657 ) ÷ 657] x 100 = -9.13%
Formula
Percentage change = [(597 - 657) / 657] x 100
Subtract the new number by the original number
597 - 657 = -60
-60 ÷ 657 = -0.091324200913242
-0.091324200913242 x 100 = -9.13%