4.18% is the change from 311 to 324
Calculation steps:
[( 324 - 311 ) ÷ 311] x 100 = 4.18%
Formula
Percentage change = [(324 - 311) / 311] x 100
Subtract the new number by the original number
324 - 311 = 13
13 ÷ 311 = 0.04180064308681672
0.04180064308681672 x 100 = 4.18%