-10.9% is the change from 908 to 809
Calculation steps:
[( 809 - 908 ) ÷ 908] x 100 = -10.9%
Formula
Percentage change = [(809 - 908) / 908] x 100
Subtract the new number by the original number
809 - 908 = -99
-99 ÷ 908 = -0.10903083700440529
-0.10903083700440529 x 100 = -10.9%