So your "how-to" page says you now have to use a calculation field to calculate the tax.
My current form has a multi-choice product with a conditional product that is a user defined price:
- Pay $3.65
- Pay $3.65 and donate some extra
- Donate how much extra? [ 1,00] (only appears if second option is picked above)
Now, to calculate my tax I want to do:
( field1 + field2 ) * 0.15
This calculation would essentially make the price of the tax product depend on how much the client is spending.
However, no matter what I do, as soon as I add a calculation product field the whole form breaks. If I change it to a predefined field or any other type of field it works, but the calculation fields breaks no matter what I do... I've left it blank, I've added "0" or "1", I've tried to create the actual formula... it just breaks everything.
Essentially the multi-choice product disappears completely and everything equates to 0.