I'm trying to create and If/then statement from the following table:

I have a drop down list with the values on x
I have a drop down list with the values on y
I need to populate another field with the value that corresponds to the
combination of the two.

How do I do that?

Here's the data:

1 M 10 M 20 M 30 M
1.3 Mbps 877,500 8,775,000 17,550,000 26,330,000
1.7 Mbps 1,147,500 11,475,000 22,950,000 34,425,000
2.5 Mbps 1,687,500 16,875,000 33,750,000 50,625,000

Also

Help with:

If (X) = 1.3 mbps then (A*.878), If = 1.7 Mbps then (a*1.147), if 2.5 mbps
then (a*1.687)

if (x) =