-85.08% is the change from 878 to 131
Calculation steps:
[( 131 - 878 ) ÷ 878] x 100 = -85.08%
Formula
Percentage change = [(131 - 878) / 878] x 100
Subtract the new number by the original number
131 - 878 = -747
-747 ÷ 878 = -0.8507972665148064
-0.8507972665148064 x 100 = -85.08%