1427.5% is the change from 40 to 611
Calculation steps:
[( 611 - 40 ) ÷ 40] x 100 = 1427.5%
Formula
Percentage change = [(611 - 40) / 40] x 100
Subtract the new number by the original number
611 - 40 = 571
571 ÷ 40 = 14.275
14.275 x 100 = 1427.5%
Example