I want to add the product price from opencart to a module on my joomla site

I am using Joomla -- I have a product slider on my homepage, that already shows the product pictures, product name and description.. but I would also like to include the price of the product and the reduced price.. (some products are Was £99, NOW £50 for example) .. The module already connects with opencart, I just don't know how to call the price and the 'special' price from the sql.

(I have actually managed to add the product price.. but I cannot get the 'special' discounted price to show.. and it's not quite correct.

The screenshot shows the current set up (first 3 products) and then the desired setup on the 4th product.

If you can prove to be helpful, I'm sure there will be other tasks that need a specialist as we continue to develop the website and add other features that are beyond my skill level with php/mysql customisation.

You can see the module in question at the following url - 89.145.78.137/~neweco/ on the homepage. It is using a fairly advanced module and I don't think it needs much tweaking to work.