Like a real world shopping experience when I finish collecting all the items I want to purchase into my shopping cart I proceed to the register where they will tally the total cost of my items. The DevKen Cart Calculator Class is that piece of the puzzle, it takes a shopping cart and calculates the total costs.
The Cart Calculator Class returns an augmented shopping cart that includes handling charges, taxes, discounts, subtotals and totals for each item. It also returns the calculations for the entire cart. Returning items like tax, shipping and handling, total, subtotal and more. Check out the demo page for a complete list.