1638.46% is the change from 39 to 678
Calculation steps:
[( 678 - 39 ) ÷ 39] x 100 = 1638.46%
Formula
Percentage change = [(678 - 39) / 39] x 100
Subtract the new number by the original number
678 - 39 = 639
639 ÷ 39 = 16.384615384615383
16.384615384615383 x 100 = 1638.46%