I have a requirement for develop a shopping cart web application for the jewellery shop. I thought to develop this using PHP framework because I have some previous experience with opencart. However according to the requirement, price of jewelleries in the shopping cart should be change according to the daily changing (assume this gold rate will input to the system by admin user) gold rate. Also there is a formula to calculate the product (jewellery) price according to the gold rate. I am looking for recommendations to achieve this requirement. Can I do this using opencart or do I have to move to another framework like magento or any other?
Can tell only about OpenCart. There is no exact functions like you described in a default version. But: