660.55% is the change from 109 to 829
Calculation steps:
[( 829 - 109 ) ÷ 109] x 100 = 660.55%
Formula
Percentage change = [(829 - 109) / 109] x 100
Subtract the new number by the original number
829 - 109 = 720
720 ÷ 109 = 6.605504587155964
6.605504587155964 x 100 = 660.55%