1597.37% is the change from 38 to 645
Calculation steps:
[( 645 - 38 ) ÷ 38] x 100 = 1597.37%
Formula
Percentage change = [(645 - 38) / 38] x 100
Subtract the new number by the original number
645 - 38 = 607
607 ÷ 38 = 15.973684210526315
15.973684210526315 x 100 = 1597.37%