-81.79% is the change from 659 to 120
Calculation steps:
[( 120 - 659 ) ÷ 659] x 100 = -81.79%
Formula
Percentage change = [(120 - 659) / 659] x 100
Subtract the new number by the original number
120 - 659 = -539
-539 ÷ 659 = -0.8179059180576631
-0.8179059180576631 x 100 = -81.79%