-68.22% is the change from 878 to 279
Calculation steps:
[( 279 - 878 ) ÷ 878] x 100 = -68.22%
Formula
Percentage change = [(279 - 878) / 878] x 100
Subtract the new number by the original number
279 - 878 = -599
-599 ÷ 878 = -0.6822323462414579
-0.6822323462414579 x 100 = -68.22%