-48.75% is the change from 878 to 450
Calculation steps:
[( 450 - 878 ) ÷ 878] x 100 = -48.75%
Formula
Percentage change = [(450 - 878) / 878] x 100
Subtract the new number by the original number
450 - 878 = -428
-428 ÷ 878 = -0.4874715261958998
-0.4874715261958998 x 100 = -48.75%