How to create an order form with calculation?

I am happy with Jotform.

I use everweb for my website

http://www.rijks.co.za

and Jotform for my forms / orders

http://www.rijkswine.com/shop-desktop-700.html

I want to add calculation fields to get a total and then have a payment option directly to my bank account

I contacted Upwork but nobody really specialises with jotform that much.

Surely you have some people that can help me.

I dont want to move to Shopify.

Thank you.

You need to setup an order form to add up your product total ad send it to the gateway for processing.

Please follow these guide to know more about setting up an order form:

https://www.jotform.com/help/165-Setting-Up-Your-First-Order-Form

https://www.jotform.com/help/323-Mastering-Payment-Form-Integrations-with-JotForm

You can choose from other payment gateways rather than Paypal since you do not have paypal in your country.

If you have any further query, please let us know.

Unfortunately we cant create the whole form for you. However, if you get stuck we can assist you. Its not difficult to setup a payment integration.

Setting-Up-Your-First-Order-Form

Mastering-Payment-Form-Integrations-with-JotForm

Just to add to the previous answer. It is also possible to use calculation fields and pass that total to your payment integration. 

How-to-Pass-a-Calculation-to-a-Payment-Field

So now you have two different ways to setup a shopping cart. The first way (as suggested by my colleague) is easier. So I recommend you try that.