1772.5% is the change from 40 to 749
Calculation steps:
[( 749 - 40 ) ÷ 40] x 100 = 1772.5%
Formula
Percentage change = [(749 - 40) / 40] x 100
Subtract the new number by the original number
749 - 40 = 709
709 ÷ 40 = 17.725
17.725 x 100 = 1772.5%
Example