2.31% is the change from 303 to 310
Calculation steps:
[( 310 - 303 ) ÷ 303] x 100 = 2.31%
Formula
Percentage change = [(310 - 303) / 303] x 100
Subtract the new number by the original number
310 - 303 = 7
7 ÷ 303 = 0.0231023102310231
0.0231023102310231 x 100 = 2.31%