108.29% is the change from 398 to 829
Calculation steps:
[( 829 - 398 ) ÷ 398] x 100 = 108.29%
Formula
Percentage change = [(829 - 398) / 398] x 100
Subtract the new number by the original number
829 - 398 = 431
431 ÷ 398 = 1.0829145728643217
1.0829145728643217 x 100 = 108.29%