-79.12% is the change from 656 to 137
Calculation steps:
[( 137 - 656 ) ÷ 656] x 100 = -79.12%
Formula
Percentage change = [(137 - 656) / 656] x 100
Subtract the new number by the original number
137 - 656 = -519
-519 ÷ 656 = -0.7911585365853658
-0.7911585365853658 x 100 = -79.12%