I need to develop a round off module/addon for cs-cart.
At checkout the user should be given the option to "Round off cart for charity" at which point the total checkout amount is rounded off to the nearest $5 or another amount set by the site admin in the CS-Cart backend.
Example: Cart total is $242.40
The shopper can then choose to round off the total for charity, and the cart is updated (ajax request) with the new total of $245.00
Simple addon to be developed.