-86.96% is the change from 966 to 126
Calculation steps:
[( 126 - 966 ) ÷ 966] x 100 = -86.96%
Formula
Percentage change = [(126 - 966) / 966] x 100
Subtract the new number by the original number
126 - 966 = -840
-840 ÷ 966 = -0.8695652173913043
-0.8695652173913043 x 100 = -86.96%