637.8% is the change from 82 to 605
Calculation steps:
[( 605 - 82 ) ÷ 82] x 100 = 637.8%
Formula
Percentage change = [(605 - 82) / 82] x 100
Subtract the new number by the original number
605 - 82 = 523
523 ÷ 82 = 6.378048780487805
6.378048780487805 x 100 = 637.8%