1664.1% is the change from 39 to 688
Calculation steps:
[( 688 - 39 ) ÷ 39] x 100 = 1664.1%
Formula
Percentage change = [(688 - 39) / 39] x 100
Subtract the new number by the original number
688 - 39 = 649
649 ÷ 39 = 16.641025641025642
16.641025641025642 x 100 = 1664.1%