-26.2% is the change from 878 to 648
Calculation steps:
[( 648 - 878 ) ÷ 878] x 100 = -26.2%
Formula
Percentage change = [(648 - 878) / 878] x 100
Subtract the new number by the original number
648 - 878 = -230
-230 ÷ 878 = -0.2619589977220957
-0.2619589977220957 x 100 = -26.2%