1700% is the change from 38 to 684
Calculation steps:
[( 684 - 38 ) ÷ 38] x 100 = 1700%
Formula
Percentage change = [(684 - 38) / 38] x 100
Subtract the new number by the original number
684 - 38 = 646
646 ÷ 38 = 17
17 x 100 = 1700%
Example