I was making an application for car repairs. I looked at the sample from Zoho about subform  https://www.zoho.com/creator/newhelp/forms/creating-subforms.html and would like to do the same, which are:

1. The subform will have a total per subform line

2. There's a total in the main form to total all subform line

Please help me how to do that in the formula field both in subform and main form.

Thank you very much.

Michael Dharmawan