You have just written a book on Human Rusource Information 5 siteras. You plan to sel 20,000 bools in the coming year at $60.00 per book. Unit variable costs are $15.50 (includes direct materials, direct labour, variable overhead, and wanable selling and administrative experises). Total fored costs are $32.500. Calculate the number of books to sell to earn an operating incent of $50000. Check your answer by preparing a contribution margin income statement bosed on the breakeven number of units. If foced costs are reduced to $10,500, calculate the total number of books to sell to earn an ogerating incorne of $50,000