-73.12% is the change from 878 to 236
Calculation steps:
[( 236 - 878 ) ÷ 878] x 100 = -73.12%
Formula
Percentage change = [(236 - 878) / 878] x 100
Subtract the new number by the original number
236 - 878 = -642
-642 ÷ 878 = -0.7312072892938497
-0.7312072892938497 x 100 = -73.12%