12.81% is the change from 398 to 449
Calculation steps:
[( 449 - 398 ) ÷ 398] x 100 = 12.81%
Formula
Percentage change = [(449 - 398) / 398] x 100
Subtract the new number by the original number
449 - 398 = 51
51 ÷ 398 = 0.12814070351758794
0.12814070351758794 x 100 = 12.81%