I don't know how to price my items. I've been pricing them using their unit price in the store. For example, if something cost me $4 in the store, then the cost at school is 400 tickets (our tickets are 5s, 10s, and 20s). So, I do 1 ticket per penny spent (using unit price). Also, what about sales? For example, a round tub of thinking putty was on clearance at Wal-mart for $1 so I priced it at school as 100 tickets. Original price at the store was $5. Should I have priced it at 500 tickets?