Any way to calculate the running total of values in a multi-insert field before actually inserting the form?

[George]

A good example how to do this is:

Creating a Shopping Cart with the Data Store Component

The Data Store component allows you to store and edit local data in a simple local storage driven database. You can use this component to create a shopping cart, favorite products list, task lists etc. In this tutorial we will show you how to add a shopping cart functionality to your site. Local Storage vs Session Storage You can select between storing your data in the browser local storage or session storage. What are differences? Local Storage The Local Storage stores data with no expirati…