Does it have a calculation like Product, quantity and pricing and it gives aggregate pricing based on the products ordered?

Answer:

Yes, FormNX has support for the calculation field.
Check this template for example where 'Your Total Cost:' shows the calculated value on entering the Quantity of products.
https://formnx.com/f/items-cost-simulate-18ry13...
You can make your own custom logic for calculation based on your requirements.