2057.5% is the change from 40 to 863
Calculation steps:
[( 863 - 40 ) ÷ 40] x 100 = 2057.5%
Formula
Percentage change = [(863 - 40) / 40] x 100
Subtract the new number by the original number
863 - 40 = 823
823 ÷ 40 = 20.575
20.575 x 100 = 2057.5%
Example