-23.48% is the change from 656 to 502
Calculation steps:
[( 502 - 656 ) ÷ 656] x 100 = -23.48%
Formula
Percentage change = [(502 - 656) / 656] x 100
Subtract the new number by the original number
502 - 656 = -154
-154 ÷ 656 = -0.2347560975609756
-0.2347560975609756 x 100 = -23.48%