-31.78% is the change from 878 to 599
Calculation steps:
[( 599 - 878 ) ÷ 878] x 100 = -31.78%
Formula
Percentage change = [(599 - 878) / 878] x 100
Subtract the new number by the original number
599 - 878 = -279
-279 ÷ 878 = -0.31776765375854216
-0.31776765375854216 x 100 = -31.78%