Miami Powerhouse Co. manufactures portable generators for $470 and sells them for $730. The company pays a sales commission of 5% of sales revenue to the sales staff. The company pays $6000 a month rent for the store, and also pays $1800 a month to staff in addition to the commissions. The company sold 300 generators in June. If the company prepares a contribution margin income statement for the month of June, what would be the operating income? $151,950 $219,000 $74,850 $59.250