-68.56% is the change from 878 to 276
Calculation steps:
[( 276 - 878 ) ÷ 878] x 100 = -68.56%
Formula
Percentage change = [(276 - 878) / 878] x 100
Subtract the new number by the original number
276 - 878 = -602
-602 ÷ 878 = -0.6856492027334852
-0.6856492027334852 x 100 = -68.56%