-23.02% is the change from 656 to 505
Calculation steps:
[( 505 - 656 ) ÷ 656] x 100 = -23.02%
Formula
Percentage change = [(505 - 656) / 656] x 100
Subtract the new number by the original number
505 - 656 = -151
-151 ÷ 656 = -0.2301829268292683
-0.2301829268292683 x 100 = -23.02%