17.87% is the change from 291 to 343
Calculation steps:
[( 343 - 291 ) ÷ 291] x 100 = 17.87%
Formula
Percentage change = [(343 - 291) / 291] x 100
Subtract the new number by the original number
343 - 291 = 52
52 ÷ 291 = 0.17869415807560138
0.17869415807560138 x 100 = 17.87%