3252.63% is the change from 19 to 637
Calculation steps:
[( 637 - 19 ) ÷ 19] x 100 = 3252.63%
Formula
Percentage change = [(637 - 19) / 19] x 100
Subtract the new number by the original number
637 - 19 = 618
618 ÷ 19 = 32.526315789473685
32.526315789473685 x 100 = 3252.63%