-50.23% is the change from 878 to 437
Calculation steps:
[( 437 - 878 ) ÷ 878] x 100 = -50.23%
Formula
Percentage change = [(437 - 878) / 878] x 100
Subtract the new number by the original number
437 - 878 = -441
-441 ÷ 878 = -0.5022779043280182
-0.5022779043280182 x 100 = -50.23%