-99.17% is the change from 966 to 8
Calculation steps:
[( 8 - 966 ) ÷ 966] x 100 = -99.17%
Formula
Percentage change = [(8 - 966) / 966] x 100
Subtract the new number by the original number
8 - 966 = -958
-958 ÷ 966 = -0.9917184265010351
-0.9917184265010351 x 100 = -99.17%