Hi Samantha, you can use the TOTAL() formula to automatically calculate the amount based on the products selected. Add amount calculation Login to Neartail > click on the form to open it > Edit page will be displayed > In the Neartail Edit page, click on the Add price field icon > select Order amount and click Next > select Standard calculation using TOTAL() formula and click Next > click Create. Note: If you have deleted the default field with the amount calculation, then the Order amount option may not be displayed when you click on the Add price field icon. In the Neartail edit page, click on the gear icon next to the form title > Form settings page will be displayed > Click on the configure fields icon next to the Save button > Summary settings page will be displayed > select None for Amount option and click Save. You can then use the Add price option to add the amount calculation. Please try this and confirm.