An income statement for Snow-Man Co., a merchandising company, for the three months ended September is presented below. Snow-Man Co. Income Statement For the Third Quarter July August September Sales in units 4,500 5,450 6,000 Sales revenue $675,000 $817,500 $900.000 Less cost of goods sold 193,500 234,350 258,000 Gross Margin 481,500 583,150 642,000 Less operating expenses Shipping expense 55,000 64,500 70,000 Advertising expense 90,000 90,000 90,000 Salaries and commissions 111,000 128,100 138.000 Insurance expense 9,000 9,000 9,000 Depreciation expense 42,000 42,000 42,000 Total operating expenses 307,000 333,600 349,000 Net income $174,500 $249,550 $293.000 Choose... Choose... . What is the company's breakeven sales in units per month? What is the company's contribution margin percentage? What is the best estimate of the company's total fixed operating expenses per month? What is the company's contribution margin for the quarter? Choose... . Choose... . What is the best estimate of the company's variable operating expenses per unit Choose