519.42% is the change from 103 to 638
Calculation steps:
[( 638 - 103 ) ÷ 103] x 100 = 519.42%
Formula
Percentage change = [(638 - 103) / 103] x 100
Subtract the new number by the original number
638 - 103 = 535
535 ÷ 103 = 5.194174757281553
5.194174757281553 x 100 = 519.42%