Power on the Go buys portable generators for $460 and sells them for $770. The company pays a sales commission of 5% of sales revenue to the sales staff. The company pays $6,000 a month ent for the store, and also pays $1,700 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 or the month of June, what would be the contribution margin? A. $149,550 B. $93,000 C. $231,000 D. $81,450