1440% is the change from 40 to 616
Calculation steps:
[( 616 - 40 ) ÷ 40] x 100 = 1440%
Formula
Percentage change = [(616 - 40) / 40] x 100
Subtract the new number by the original number
616 - 40 = 576
576 ÷ 40 = 14.4
14.4 x 100 = 1440%
Example