1827.5% is the change from 40 to 771
Calculation steps:
[( 771 - 40 ) ÷ 40] x 100 = 1827.5%
Formula
Percentage change = [(771 - 40) / 40] x 100
Subtract the new number by the original number
771 - 40 = 731
731 ÷ 40 = 18.275
18.275 x 100 = 1827.5%
Example