-86.76% is the change from 974 to 129
Calculation steps:
[( 129 - 974 ) ÷ 974] x 100 = -86.76%
Formula
Percentage change = [(129 - 974) / 974] x 100
Subtract the new number by the original number
129 - 974 = -845
-845 ÷ 974 = -0.8675564681724846
-0.8675564681724846 x 100 = -86.76%