507.62% is the change from 105 to 638
Calculation steps:
[( 638 - 105 ) ÷ 105] x 100 = 507.62%
Formula
Percentage change = [(638 - 105) / 105] x 100
Subtract the new number by the original number
638 - 105 = 533
533 ÷ 105 = 5.076190476190476
5.076190476190476 x 100 = 507.62%