4.3% is the change from 302 to 315
Calculation steps:
[( 315 - 302 ) ÷ 302] x 100 = 4.3%
Formula
Percentage change = [(315 - 302) / 302] x 100
Subtract the new number by the original number
315 - 302 = 13
13 ÷ 302 = 0.04304635761589404
0.04304635761589404 x 100 = 4.3%