1644.74% is the change from 38 to 663
Calculation steps:
[( 663 - 38 ) ÷ 38] x 100 = 1644.74%
Formula
Percentage change = [(663 - 38) / 38] x 100
Subtract the new number by the original number
663 - 38 = 625
625 ÷ 38 = 16.44736842105263
16.44736842105263 x 100 = 1644.74%