-87.5% is the change from 960 to 120
Calculation steps:
[( 120 - 960 ) ÷ 960] x 100 = -87.5%
Formula
Percentage change = [(120 - 960) / 960] x 100
Subtract the new number by the original number
120 - 960 = -840
-840 ÷ 960 = -0.875
-0.875 x 100 = -87.5%