-12.04% is the change from 656 to 577
Calculation steps:
[( 577 - 656 ) ÷ 656] x 100 = -12.04%
Formula
Percentage change = [(577 - 656) / 656] x 100
Subtract the new number by the original number
577 - 656 = -79
-79 ÷ 656 = -0.12042682926829268
-0.12042682926829268 x 100 = -12.04%