Happyview Services is a small assisted$-$living facility in your community that provides healthcare, social programs, meals, laundry services, etc. Happyview has a small staff that has Total fixed costs, including staff salaries and benefits, which has been calculated at $$400,000$ annually. Indirect costs are $$50$ per unit of service. The average revenue for each unit of service is $$80.$ Calculate the break$-$even volume of Happyview.