-17.96% is the change from 657 to 539
Calculation steps:
[( 539 - 657 ) ÷ 657] x 100 = -17.96%
Formula
Percentage change = [(539 - 657) / 657] x 100
Subtract the new number by the original number
539 - 657 = -118
-118 ÷ 657 = -0.1796042617960426
-0.1796042617960426 x 100 = -17.96%