-78.81% is the change from 656 to 139
Calculation steps:
[( 139 - 656 ) ÷ 656] x 100 = -78.81%
Formula
Percentage change = [(139 - 656) / 656] x 100
Subtract the new number by the original number
139 - 656 = -517
-517 ÷ 656 = -0.788109756097561
-0.788109756097561 x 100 = -78.81%