I need to adjust a field to automatically calculate when a certain Manufacturer is selected from the drop down field.

I was thinking about a Fetch Records to do this.

example;

Inventory Form

Manufacturer Drop-down field

three pricing fields (A, B, C)

If Manufacturer(Big Int field) ="Apple"

Calculate Price in "A" times.3 and place amount in Currency field "C"

aep=(Inventory[ID=Input.manufacturer].count()>0)

if Input.Manufacturer.toString()=="Apple"

{

field c= a*.3

}

would this be correct.

I think I am missing something.