-99.14% is the change from 931 to 8
Calculation steps:
[( 8 - 931 ) ÷ 931] x 100 = -99.14%
Formula
Percentage change = [(8 - 931) / 931] x 100
Subtract the new number by the original number
8 - 931 = -923
-923 ÷ 931 = -0.99140708915145
-0.99140708915145 x 100 = -99.14%