11.36% is the change from 308 to 343
Calculation steps:
[( 343 - 308 ) ÷ 308] x 100 = 11.36%
Formula
Percentage change = [(343 - 308) / 308] x 100
Subtract the new number by the original number
343 - 308 = 35
35 ÷ 308 = 0.11363636363636363
0.11363636363636363 x 100 = 11.36%