-55.69% is the change from 878 to 389
Calculation steps:
[( 389 - 878 ) ÷ 878] x 100 = -55.69%
Formula
Percentage change = [(389 - 878) / 878] x 100
Subtract the new number by the original number
389 - 878 = -489
-489 ÷ 878 = -0.5569476082004556
-0.5569476082004556 x 100 = -55.69%