-87.47% is the change from 966 to 121
Calculation steps:
[( 121 - 966 ) ÷ 966] x 100 = -87.47%
Formula
Percentage change = [(121 - 966) / 966] x 100
Subtract the new number by the original number
121 - 966 = -845
-845 ÷ 966 = -0.8747412008281573
-0.8747412008281573 x 100 = -87.47%