-38.95% is the change from 878 to 536
Calculation steps:
[( 536 - 878 ) ÷ 878] x 100 = -38.95%
Formula
Percentage change = [(536 - 878) / 878] x 100
Subtract the new number by the original number
536 - 878 = -342
-342 ÷ 878 = -0.3895216400911162
-0.3895216400911162 x 100 = -38.95%