6.13% is the change from 310 to 329
Calculation steps:
[( 329 - 310 ) ÷ 310] x 100 = 6.13%
Formula
Percentage change = [(329 - 310) / 310] x 100
Subtract the new number by the original number
329 - 310 = 19
19 ÷ 310 = 0.06129032258064516
0.06129032258064516 x 100 = 6.13%