-60.98% is the change from 656 to 256
Calculation steps:
[( 256 - 656 ) ÷ 656] x 100 = -60.98%
Formula
Percentage change = [(256 - 656) / 656] x 100
Subtract the new number by the original number
256 - 656 = -400
-400 ÷ 656 = -0.6097560975609756
-0.6097560975609756 x 100 = -60.98%