-74.94% is the change from 878 to 220
Calculation steps:
[( 220 - 878 ) ÷ 878] x 100 = -74.94%
Formula
Percentage change = [(220 - 878) / 878] x 100
Subtract the new number by the original number
220 - 878 = -658
-658 ÷ 878 = -0.7494305239179955
-0.7494305239179955 x 100 = -74.94%