7.55% is the change from 318 to 342
Calculation steps:
[( 342 - 318 ) ÷ 318] x 100 = 7.55%
Formula
Percentage change = [(342 - 318) / 318] x 100
Subtract the new number by the original number
342 - 318 = 24
24 ÷ 318 = 0.07547169811320754
0.07547169811320754 x 100 = 7.55%