-48.97% is the change from 878 to 448
Calculation steps:
[( 448 - 878 ) ÷ 878] x 100 = -48.97%
Formula
Percentage change = [(448 - 878) / 878] x 100
Subtract the new number by the original number
448 - 878 = -430
-430 ÷ 878 = -0.489749430523918
-0.489749430523918 x 100 = -48.97%