-8.81% is the change from 908 to 828
Calculation steps:
[( 828 - 908 ) ÷ 908] x 100 = -8.81%
Formula
Percentage change = [(828 - 908) / 908] x 100
Subtract the new number by the original number
828 - 908 = -80
-80 ÷ 908 = -0.0881057268722467
-0.0881057268722467 x 100 = -8.81%