509.76% is the change from 82 to 500
Calculation steps:
[( 500 - 82 ) ÷ 82] x 100 = 509.76%
Formula
Percentage change = [(500 - 82) / 82] x 100
Subtract the new number by the original number
500 - 82 = 418
418 ÷ 82 = 5.097560975609756
5.097560975609756 x 100 = 509.76%