1636.84% is the change from 38 to 660
Calculation steps:
[( 660 - 38 ) ÷ 38] x 100 = 1636.84%
Formula
Percentage change = [(660 - 38) / 38] x 100
Subtract the new number by the original number
660 - 38 = 622
622 ÷ 38 = 16.36842105263158
16.36842105263158 x 100 = 1636.84%