13.71% is the change from 350 to 398
Calculation steps:
[( 398 - 350 ) ÷ 350] x 100 = 13.71%
Formula
Percentage change = [(398 - 350) / 350] x 100
Subtract the new number by the original number
398 - 350 = 48
48 ÷ 350 = 0.13714285714285715
0.13714285714285715 x 100 = 13.71%