1500% is the change from 39 to 624
Calculation steps:
[( 624 - 39 ) ÷ 39] x 100 = 1500%
Formula
Percentage change = [(624 - 39) / 39] x 100
Subtract the new number by the original number
624 - 39 = 585
585 ÷ 39 = 15
15 x 100 = 1500%
Example