Manzanita Cider, a company that sells apple cider, has the following information:

• The average sales price of each bottle is $15
• The average cost of each bottle is $6
• The rent for March on its retail store is $2,500
• Insurance costs for March are $100
• Salaries of employees for March are $5,000

Based on the information above, how many bottles does Manzanita Cider need to sell to reach an operating income of $10,000? (Round to the nearest unit.)