-51.94% is the change from 878 to 422
Calculation steps:
[( 422 - 878 ) ÷ 878] x 100 = -51.94%
Formula
Percentage change = [(422 - 878) / 878] x 100
Subtract the new number by the original number
422 - 878 = -456
-456 ÷ 878 = -0.5193621867881549
-0.5193621867881549 x 100 = -51.94%