-79.31% is the change from 662 to 137
Calculation steps:
[( 137 - 662 ) ÷ 662] x 100 = -79.31%
Formula
Percentage change = [(137 - 662) / 662] x 100
Subtract the new number by the original number
137 - 662 = -525
-525 ÷ 662 = -0.7930513595166163
-0.7930513595166163 x 100 = -79.31%