383.81% is the change from 105 to 508
Calculation steps:
[( 508 - 105 ) ÷ 105] x 100 = 383.81%
Formula
Percentage change = [(508 - 105) / 105] x 100
Subtract the new number by the original number
508 - 105 = 403
403 ÷ 105 = 3.8380952380952382
3.8380952380952382 x 100 = 383.81%