102.69% is the change from 409 to 829
Calculation steps:
[( 829 - 409 ) ÷ 409] x 100 = 102.69%
Formula
Percentage change = [(829 - 409) / 409] x 100
Subtract the new number by the original number
829 - 409 = 420
420 ÷ 409 = 1.0268948655256724
1.0268948655256724 x 100 = 102.69%