-93.51% is the change from 878 to 57
Calculation steps:
[( 57 - 878 ) ÷ 878] x 100 = -93.51%
Formula
Percentage change = [(57 - 878) / 878] x 100
Subtract the new number by the original number
57 - 878 = -821
-821 ÷ 878 = -0.9350797266514806
-0.9350797266514806 x 100 = -93.51%