508.54% is the change from 82 to 499
Calculation steps:
[( 499 - 82 ) ÷ 82] x 100 = 508.54%
Formula
Percentage change = [(499 - 82) / 82] x 100
Subtract the new number by the original number
499 - 82 = 417
417 ÷ 82 = 5.085365853658536
5.085365853658536 x 100 = 508.54%