508.08% is the change from 99 to 602
Calculation steps:
[( 602 - 99 ) ÷ 99] x 100 = 508.08%
Formula
Percentage change = [(602 - 99) / 99] x 100
Subtract the new number by the original number
602 - 99 = 503
503 ÷ 99 = 5.08080808080808
5.08080808080808 x 100 = 508.08%