12.56% is the change from 398 to 448
Calculation steps:
[( 448 - 398 ) ÷ 398] x 100 = 12.56%
Formula
Percentage change = [(448 - 398) / 398] x 100
Subtract the new number by the original number
448 - 398 = 50
50 ÷ 398 = 0.12562814070351758
0.12562814070351758 x 100 = 12.56%