12.3% is the change from 317 to 356
Calculation steps:
[( 356 - 317 ) ÷ 317] x 100 = 12.3%
Formula
Percentage change = [(356 - 317) / 317] x 100
Subtract the new number by the original number
356 - 317 = 39
39 ÷ 317 = 0.12302839116719243
0.12302839116719243 x 100 = 12.3%