1646.15% is the change from 39 to 681
Calculation steps:
[( 681 - 39 ) ÷ 39] x 100 = 1646.15%
Formula
Percentage change = [(681 - 39) / 39] x 100
Subtract the new number by the original number
681 - 39 = 642
642 ÷ 39 = 16.46153846153846
16.46153846153846 x 100 = 1646.15%