71.51% is the change from 502 to 861
Calculation steps:
[( 861 - 502 ) ÷ 502] x 100 = 71.51%
Formula
Percentage change = [(861 - 502) / 502] x 100
Subtract the new number by the original number
861 - 502 = 359
359 ÷ 502 = 0.7151394422310757
0.7151394422310757 x 100 = 71.51%