52.45% is the change from 326 to 497
Calculation steps:
[( 497 - 326 ) ÷ 326] x 100 = 52.45%
Formula
Percentage change = [(497 - 326) / 326] x 100
Subtract the new number by the original number
497 - 326 = 171
171 ÷ 326 = 0.5245398773006135
0.5245398773006135 x 100 = 52.45%