1442.5% is the change from 40 to 617
Calculation steps:
[( 617 - 40 ) ÷ 40] x 100 = 1442.5%
Formula
Percentage change = [(617 - 40) / 40] x 100
Subtract the new number by the original number
617 - 40 = 577
577 ÷ 40 = 14.425
14.425 x 100 = 1442.5%
Example