513.46% is the change from 104 to 638
Calculation steps:
[( 638 - 104 ) ÷ 104] x 100 = 513.46%
Formula
Percentage change = [(638 - 104) / 104] x 100
Subtract the new number by the original number
638 - 104 = 534
534 ÷ 104 = 5.134615384615385
5.134615384615385 x 100 = 513.46%