1425% is the change from 40 to 610
Calculation steps:
[( 610 - 40 ) ÷ 40] x 100 = 1425%
Formula
Percentage change = [(610 - 40) / 40] x 100
Subtract the new number by the original number
610 - 40 = 570
570 ÷ 40 = 14.25
14.25 x 100 = 1425%
Example