-31.32% is the change from 878 to 603
Calculation steps:
[( 603 - 878 ) ÷ 878] x 100 = -31.32%
Formula
Percentage change = [(603 - 878) / 878] x 100
Subtract the new number by the original number
603 - 878 = -275
-275 ÷ 878 = -0.3132118451025057
-0.3132118451025057 x 100 = -31.32%