-90.16% is the change from 874 to 86
Calculation steps:
[( 86 - 874 ) ÷ 874] x 100 = -90.16%
Formula
Percentage change = [(86 - 874) / 874] x 100
Subtract the new number by the original number
86 - 874 = -788
-788 ÷ 874 = -0.9016018306636155
-0.9016018306636155 x 100 = -90.16%