-43.05% is the change from 878 to 500
Calculation steps:
[( 500 - 878 ) ÷ 878] x 100 = -43.05%
Formula
Percentage change = [(500 - 878) / 878] x 100
Subtract the new number by the original number
500 - 878 = -378
-378 ÷ 878 = -0.4305239179954442
-0.4305239179954442 x 100 = -43.05%