-71.53% is the change from 878 to 250
Calculation steps:
[( 250 - 878 ) ÷ 878] x 100 = -71.53%
Formula
Percentage change = [(250 - 878) / 878] x 100
Subtract the new number by the original number
250 - 878 = -628
-628 ÷ 878 = -0.715261958997722
-0.715261958997722 x 100 = -71.53%