-73.8% is the change from 878 to 230
Calculation steps:
[( 230 - 878 ) ÷ 878] x 100 = -73.8%
Formula
Percentage change = [(230 - 878) / 878] x 100
Subtract the new number by the original number
230 - 878 = -648
-648 ÷ 878 = -0.7380410022779044
-0.7380410022779044 x 100 = -73.8%