-97.38% is the change from 878 to 23
Calculation steps:
[( 23 - 878 ) ÷ 878] x 100 = -97.38%
Formula
Percentage change = [(23 - 878) / 878] x 100
Subtract the new number by the original number
23 - 878 = -855
-855 ÷ 878 = -0.9738041002277904
-0.9738041002277904 x 100 = -97.38%