-40.55% is the change from 656 to 390
Calculation steps:
[( 390 - 656 ) ÷ 656] x 100 = -40.55%
Formula
Percentage change = [(390 - 656) / 656] x 100
Subtract the new number by the original number
390 - 656 = -266
-266 ÷ 656 = -0.4054878048780488
-0.4054878048780488 x 100 = -40.55%