Vital BizForm
How do I use the formula field type?

Similar to the calculation formula in Excel, calculation (addition, subtraction, multiplication, division..) can also be done when designing the form. 
Choose [Formula] in the "Fields type" and go to settings in the "Formula" column. In the Formula Editor, click the fields and functions to set up formula. You can also add up the total amount of multiple columns, just like Excel.

Similar to the calculation formula in Excel, calculation (addition, subtraction, multiplication, division..) can also be done when designing the form.  Choose [Formula] in the "Fields type" and go to settings in the "Formula" column. In the Formula Editor, click the fields and functions to set up formula.
https://faq.vitalyun.com/EN/BizForm#2957
What does the approval status of each document mean?
Vital BizForm版本 2
Can BizForm be used in China?
Vital BizForm版本 2
How do I log into BizForm after receiving the invitation?
Vital BizForm版本 2
If I set the permissions of the approval form to "only admin and I" can view/edit, are other auditors able to approve the forms?
Vital BizForm版本 2
How can I create a hand-written signature column?
Vital BizForm版本 2
How can I add and design a form?
Vital BizForm版本 2
How do I delete a form?
Vital BizForm版本 2
How do I add form work flows?
Vital BizForm版本 2
How do I add work flows to an existing form?
Vital BizForm版本 2
How do I delete work flows?
Vital BizForm版本 3