-90.73% is the change from 928 to 86
Calculation steps:
[( 86 - 928 ) ÷ 928] x 100 = -90.73%
Formula
Percentage change = [(86 - 928) / 928] x 100
Subtract the new number by the original number
86 - 928 = -842
-842 ÷ 928 = -0.9073275862068966
-0.9073275862068966 x 100 = -90.73%