I'm trying to make a session value for mileage calculate the cost of the mileage.

I can get it to work with:

<% Session("CalcMileage"=Session("ConfMileage"*.31%>

but I need to test it against three different values. I've tried to string together an If Else statement, but I've butchered it horribly. I have the user inputting the variables which determine the conversion rate to apply, but I need a bit of help stringing the statement together.

Please help!