-5.06% is the change from 909 to 863
Calculation steps:
[( 863 - 909 ) ÷ 909] x 100 = -5.06%
Formula
Percentage change = [(863 - 909) / 909] x 100
Subtract the new number by the original number
863 - 909 = -46
-46 ÷ 909 = -0.050605060506050605
-0.050605060506050605 x 100 = -5.06%