-23.63% is the change from 656 to 501
Calculation steps:
[( 501 - 656 ) ÷ 656] x 100 = -23.63%
Formula
Percentage change = [(501 - 656) / 656] x 100
Subtract the new number by the original number
501 - 656 = -155
-155 ÷ 656 = -0.23628048780487804
-0.23628048780487804 x 100 = -23.63%