61.35% is the change from 502 to 810
Calculation steps:
[( 810 - 502 ) ÷ 502] x 100 = 61.35%
Formula
Percentage change = [(810 - 502) / 502] x 100
Subtract the new number by the original number
810 - 502 = 308
308 ÷ 502 = 0.6135458167330677
0.6135458167330677 x 100 = 61.35%