18.55% is the change from 275 to 326
Calculation steps:
[( 326 - 275 ) ÷ 275] x 100 = 18.55%
Formula
Percentage change = [(326 - 275) / 275] x 100
Subtract the new number by the original number
326 - 275 = 51
51 ÷ 275 = 0.18545454545454546
0.18545454545454546 x 100 = 18.55%