3923.53% is the change from 17 to 684
Calculation steps:
[( 684 - 17 ) ÷ 17] x 100 = 3923.53%
Formula
Percentage change = [(684 - 17) / 17] x 100
Subtract the new number by the original number
684 - 17 = 667
667 ÷ 17 = 39.23529411764706
39.23529411764706 x 100 = 3923.53%