-16.74% is the change from 878 to 731
Calculation steps:
[( 731 - 878 ) ÷ 878] x 100 = -16.74%
Formula
Percentage change = [(731 - 878) / 878] x 100
Subtract the new number by the original number
731 - 878 = -147
-147 ÷ 878 = -0.1674259681093394
-0.1674259681093394 x 100 = -16.74%