-27.13% is the change from 656 to 478
Calculation steps:
[( 478 - 656 ) ÷ 656] x 100 = -27.13%
Formula
Percentage change = [(478 - 656) / 656] x 100
Subtract the new number by the original number
478 - 656 = -178
-178 ÷ 656 = -0.27134146341463417
-0.27134146341463417 x 100 = -27.13%