0.99% is the change from 909 to 918
Calculation steps:
[( 918 - 909 ) ÷ 909] x 100 = 0.99%
Formula
Percentage change = [(918 - 909) / 909] x 100
Subtract the new number by the original number
918 - 909 = 9
9 ÷ 909 = 0.009900990099009901
0.009900990099009901 x 100 = 0.99%