11.73% is the change from 307 to 343
Calculation steps:
[( 343 - 307 ) ÷ 307] x 100 = 11.73%
Formula
Percentage change = [(343 - 307) / 307] x 100
Subtract the new number by the original number
343 - 307 = 36
36 ÷ 307 = 0.11726384364820847
0.11726384364820847 x 100 = 11.73%