-87.4% is the change from 960 to 121
Calculation steps:
[( 121 - 960 ) ÷ 960] x 100 = -87.4%
Formula
Percentage change = [(121 - 960) / 960] x 100
Subtract the new number by the original number
121 - 960 = -839
-839 ÷ 960 = -0.8739583333333333
-0.8739583333333333 x 100 = -87.4%