1578.95% is the change from 38 to 638
Calculation steps:
[( 638 - 38 ) ÷ 38] x 100 = 1578.95%
Formula
Percentage change = [(638 - 38) / 38] x 100
Subtract the new number by the original number
638 - 38 = 600
600 ÷ 38 = 15.789473684210526
15.789473684210526 x 100 = 1578.95%