-23.59% is the change from 657 to 502
Calculation steps:
[( 502 - 657 ) ÷ 657] x 100 = -23.59%
Formula
Percentage change = [(502 - 657) / 657] x 100
Subtract the new number by the original number
502 - 657 = -155
-155 ÷ 657 = -0.2359208523592085
-0.2359208523592085 x 100 = -23.59%