ADD A FEATURE TO WHERE IF AN ITEM HAS A CERTAIN QUANTITY IT AUTOMATICALLY ADDS THE DISCOUNT.

EXAMPLE: AS AN ELECTRICIAN, IF A CUSTOMER ADDS MORE THAN 6+ LIGHT FIXTURES THE PRICE IS 15% CHEAPER COMPARED TO ONLY ADDING 1 OR 4. THEREFORE IF I WERE TO ADD A QUANTITY OF 6 LIGHT FIXTURES, THE DISCOUNT SECTION WOULD AUTOMATICALLY APPLY THAT DISCOUNT.