-86.44% is the change from 966 to 131
Calculation steps:
[( 131 - 966 ) ÷ 966] x 100 = -86.44%
Formula
Percentage change = [(131 - 966) / 966] x 100
Subtract the new number by the original number
131 - 966 = -835
-835 ÷ 966 = -0.8643892339544513
-0.8643892339544513 x 100 = -86.44%