65.14% is the change from 502 to 829
Calculation steps:
[( 829 - 502 ) ÷ 502] x 100 = 65.14%
Formula
Percentage change = [(829 - 502) / 502] x 100
Subtract the new number by the original number
829 - 502 = 327
327 ÷ 502 = 0.651394422310757
0.651394422310757 x 100 = 65.14%