-84.74% is the change from 878 to 134
Calculation steps:
[( 134 - 878 ) ÷ 878] x 100 = -84.74%
Formula
Percentage change = [(134 - 878) / 878] x 100
Subtract the new number by the original number
134 - 878 = -744
-744 ÷ 878 = -0.8473804100227791
-0.8473804100227791 x 100 = -84.74%