I'm not familiar with version 9, so I don't know if they have added any functionality to make this easier or not. In version 8:
If your field names are "qty.1", "qty.2", "qty.3"...etc and "cost.1", "cost.2", "cost.3"... etc. (note the position and usage of the 'dot' in each field name) then you can create a line total field for each line and set that to calculate the product of "qty.1" and "cost.1". Name this field something like "lineTotal.1". Do that for each line.
Then, you can create a total field to sum "lineTotal" and this will include all fields that are named "lineTotal.X"
I was hoping that there could be a possible easier solution as I have several order forms with multipul items on each form. Is there any java that will make it easier. If not then I got my work cut out for me.
Is there any java that will make it easier.
Acrobat doesn't use Java.