28.09% is the change from 324 to 415
Calculation steps:
[( 415 - 324 ) ÷ 324] x 100 = 28.09%
Formula
Percentage change = [(415 - 324) / 324] x 100
Subtract the new number by the original number
415 - 324 = 91
91 ÷ 324 = 0.2808641975308642
0.2808641975308642 x 100 = 28.09%