-30.75% is the change from 878 to 608
Calculation steps:
[( 608 - 878 ) ÷ 878] x 100 = -30.75%
Formula
Percentage change = [(608 - 878) / 878] x 100
Subtract the new number by the original number
608 - 878 = -270
-270 ÷ 878 = -0.30751708428246016
-0.30751708428246016 x 100 = -30.75%