To maximize profit during the COVID-19 pandemic, a company that used to produce a nonwoven fabric has converted its 25 machines to make the melt-blown fabric for the production of surgical face masks. Each machine can produce 8640 units per month. The fixed cost of the production is $65,000 /month, revenue is $3/unit, and the variable cost is $1.25/unit. Determine the expected monthly profit or loss