-90.47% is the change from 902 to 86
Calculation steps:
[( 86 - 902 ) ÷ 902] x 100 = -90.47%
Formula
Percentage change = [(86 - 902) / 902] x 100
Subtract the new number by the original number
86 - 902 = -816
-816 ÷ 902 = -0.9046563192904656
-0.9046563192904656 x 100 = -90.47%