-50.34% is the change from 878 to 436
Calculation steps:
[( 436 - 878 ) ÷ 878] x 100 = -50.34%
Formula
Percentage change = [(436 - 878) / 878] x 100
Subtract the new number by the original number
436 - 878 = -442
-442 ÷ 878 = -0.5034168564920274
-0.5034168564920274 x 100 = -50.34%