109.55% is the change from 398 to 834
Calculation steps:
[( 834 - 398 ) ÷ 398] x 100 = 109.55%
Formula
Percentage change = [(834 - 398) / 398] x 100
Subtract the new number by the original number
834 - 398 = 436
436 ÷ 398 = 1.0954773869346734
1.0954773869346734 x 100 = 109.55%