27.56% is the change from 254 to 324
Calculation steps:
[( 324 - 254 ) ÷ 254] x 100 = 27.56%
Formula
Percentage change = [(324 - 254) / 254] x 100
Subtract the new number by the original number
324 - 254 = 70
70 ÷ 254 = 0.2755905511811024
0.2755905511811024 x 100 = 27.56%