Sales- A quantity or amount sold. Reduction- The amount by which something is made smaller, less, or lower in price. Bargain- An agreement between two or more people as to what each person will do for the other. Rebate-A partial refund to someone who has paid too much money a product or anything else. Discount- Reduce of price from the usual cost of something, Prescription- An instruction written by a doctor that authorizes the patient to issued with a medicine or treatment. Receipt- A printed paper that shows you the record of what you have purchased or paid for.

E.g "Look! That dress has been discounted 50% it's a real bargain."

If you don't know what words mean, look them up in a dictionary.