11.45% is the change from 297 to 331
Calculation steps:
[( 331 - 297 ) ÷ 297] x 100 = 11.45%
Formula
Percentage change = [(331 - 297) / 297] x 100
Subtract the new number by the original number
331 - 297 = 34
34 ÷ 297 = 0.11447811447811448
0.11447811447811448 x 100 = 11.45%