-91.91% is the change from 878 to 71
Calculation steps:
[( 71 - 878 ) ÷ 878] x 100 = -91.91%
Formula
Percentage change = [(71 - 878) / 878] x 100
Subtract the new number by the original number
71 - 878 = -807
-807 ÷ 878 = -0.9191343963553531
-0.9191343963553531 x 100 = -91.91%