413.13% is the change from 99 to 508
Calculation steps:
[( 508 - 99 ) ÷ 99] x 100 = 413.13%
Formula
Percentage change = [(508 - 99) / 99] x 100
Subtract the new number by the original number
508 - 99 = 409
409 ÷ 99 = 4.1313131313131315
4.1313131313131315 x 100 = 413.13%