2390% is the change from 40 to 996
Calculation steps:
[( 996 - 40 ) ÷ 40] x 100 = 2390%
Formula
Percentage change = [(996 - 40) / 40] x 100
Subtract the new number by the original number
996 - 40 = 956
956 ÷ 40 = 23.9
23.9 x 100 = 2390%
Example