-9.01% is the change from 888 to 808
Calculation steps:
[( 808 - 888 ) ÷ 888] x 100 = -9.01%
Formula
Percentage change = [(808 - 888) / 888] x 100
Subtract the new number by the original number
808 - 888 = -80
-80 ÷ 888 = -0.09009009009009009
-0.09009009009009009 x 100 = -9.01%