9.54% is the change from 283 to 310
Calculation steps:
[( 310 - 283 ) ÷ 283] x 100 = 9.54%
Formula
Percentage change = [(310 - 283) / 283] x 100
Subtract the new number by the original number
310 - 283 = 27
27 ÷ 283 = 0.09540636042402827
0.09540636042402827 x 100 = 9.54%