6.17% is the change from 324 to 344
Calculation steps:
[( 344 - 324 ) ÷ 324] x 100 = 6.17%
Formula
Percentage change = [(344 - 324) / 324] x 100
Subtract the new number by the original number
344 - 324 = 20
20 ÷ 324 = 0.06172839506172839
0.06172839506172839 x 100 = 6.17%