11.72% is the change from 290 to 324
Calculation steps:
[( 324 - 290 ) ÷ 290] x 100 = 11.72%
Formula
Percentage change = [(324 - 290) / 290] x 100
Subtract the new number by the original number
324 - 290 = 34
34 ÷ 290 = 0.11724137931034483
0.11724137931034483 x 100 = 11.72%