A candy store has fixed expenses (rent, utilities, etc.) that total to $40,000/year. The company also has two full time employees with salaries of $20,000/year. There is also a part time employee who earns $12,000 per year, with the potential to earn a $4,000 bonus if sales exceed $100,000 within the year. If the candy can be made for $5/box and is sold for $8/box, what is the minimum number of boxes that must be sold each year to break even?