0.99% is the change from 303 to 306
Calculation steps:
[( 306 - 303 ) ÷ 303] x 100 = 0.99%
Formula
Percentage change = [(306 - 303) / 303] x 100
Subtract the new number by the original number
306 - 303 = 3
3 ÷ 303 = 0.009900990099009901
0.009900990099009901 x 100 = 0.99%