-48.78% is the change from 656 to 336
Calculation steps:
[( 336 - 656 ) ÷ 656] x 100 = -48.78%
Formula
Percentage change = [(336 - 656) / 656] x 100
Subtract the new number by the original number
336 - 656 = -320
-320 ÷ 656 = -0.4878048780487805
-0.4878048780487805 x 100 = -48.78%