-56.95% is the change from 878 to 378
Calculation steps:
[( 378 - 878 ) ÷ 878] x 100 = -56.95%
Formula
Percentage change = [(378 - 878) / 878] x 100
Subtract the new number by the original number
378 - 878 = -500
-500 ÷ 878 = -0.5694760820045558
-0.5694760820045558 x 100 = -56.95%