2387.5% is the change from 40 to 995
Calculation steps:
[( 995 - 40 ) ÷ 40] x 100 = 2387.5%
Formula
Percentage change = [(995 - 40) / 40] x 100
Subtract the new number by the original number
995 - 40 = 955
955 ÷ 40 = 23.875
23.875 x 100 = 2387.5%
Example