-91.17% is the change from 974 to 86
Calculation steps:
[( 86 - 974 ) ÷ 974] x 100 = -91.17%
Formula
Percentage change = [(86 - 974) / 974] x 100
Subtract the new number by the original number
86 - 974 = -888
-888 ÷ 974 = -0.9117043121149897
-0.9117043121149897 x 100 = -91.17%