15.1% is the change from 298 to 343
Calculation steps:
[( 343 - 298 ) ÷ 298] x 100 = 15.1%
Formula
Percentage change = [(343 - 298) / 298] x 100
Subtract the new number by the original number
343 - 298 = 45
45 ÷ 298 = 0.15100671140939598
0.15100671140939598 x 100 = 15.1%