36.12% is the change from 609 to 829
Calculation steps:
[( 829 - 609 ) ÷ 609] x 100 = 36.12%
Formula
Percentage change = [(829 - 609) / 609] x 100
Subtract the new number by the original number
829 - 609 = 220
220 ÷ 609 = 0.361247947454844
0.361247947454844 x 100 = 36.12%