-87.6% is the change from 976 to 121
Calculation steps:
[( 121 - 976 ) ÷ 976] x 100 = -87.6%
Formula
Percentage change = [(121 - 976) / 976] x 100
Subtract the new number by the original number
121 - 976 = -855
-855 ÷ 976 = -0.8760245901639344
-0.8760245901639344 x 100 = -87.6%