66.14% is the change from 502 to 834
Calculation steps:
[( 834 - 502 ) ÷ 502] x 100 = 66.14%
Formula
Percentage change = [(834 - 502) / 502] x 100
Subtract the new number by the original number
834 - 502 = 332
332 ÷ 502 = 0.6613545816733067
0.6613545816733067 x 100 = 66.14%