-78.59% is the change from 878 to 188
Calculation steps:
[( 188 - 878 ) ÷ 878] x 100 = -78.59%
Formula
Percentage change = [(188 - 878) / 878] x 100
Subtract the new number by the original number
188 - 878 = -690
-690 ÷ 878 = -0.785876993166287
-0.785876993166287 x 100 = -78.59%