27.78% is the change from 324 to 414
Calculation steps:
[( 414 - 324 ) ÷ 324] x 100 = 27.78%
Formula
Percentage change = [(414 - 324) / 324] x 100
Subtract the new number by the original number
414 - 324 = 90
90 ÷ 324 = 0.2777777777777778
0.2777777777777778 x 100 = 27.78%