-51.25% is the change from 878 to 428
Calculation steps:
[( 428 - 878 ) ÷ 878] x 100 = -51.25%
Formula
Percentage change = [(428 - 878) / 878] x 100
Subtract the new number by the original number
428 - 878 = -450
-450 ÷ 878 = -0.5125284738041003
-0.5125284738041003 x 100 = -51.25%