00 An income statement for Sam's Bookstore for the top 0223 hooktor Income statement rar Quarter inded March 31 Salen 5910.000 cout of goods sold 530.000 Grons margin 300,000 Selling and administrative expenses Selling $113,000 Administration 130,000 243.000 Net operating income $137,000 On average, a book sells for $70. Variable selling expenses are 55 per book with the remaining selling expenses being too. The varios expenses are 3% of sales with the remainder being fixed The contribution margin for Sam's Bookstore for the first quarter is