-79.42% is the change from 656 to 135
Calculation steps:
[( 135 - 656 ) ÷ 656] x 100 = -79.42%
Formula
Percentage change = [(135 - 656) / 656] x 100
Subtract the new number by the original number
135 - 656 = -521
-521 ÷ 656 = -0.7942073170731707
-0.7942073170731707 x 100 = -79.42%