-90.86% is the change from 875 to 80
Calculation steps:
[( 80 - 875 ) ÷ 875] x 100 = -90.86%
Formula
Percentage change = [(80 - 875) / 875] x 100
Subtract the new number by the original number
80 - 875 = -795
-795 ÷ 875 = -0.9085714285714286
-0.9085714285714286 x 100 = -90.86%