Iguana, Inc., manufactures bamboo picture frames that sell for $25 each. Each frame requires 4 linear feet of bamboo, which costs $2.00 per foot. Each frame takes approximately 30 minutes to build, and the labor rate averages $13 per hour. Iguana has the following inventory policies: Ending finished goods inventory should be 40 percent of next month's sales. Ending direct materials inventory should be 30 percent of next month's production. Expected unit sales (frames) for the upcoming months follow: March 310 April 320 May 370 June 470 July August 445 495 Variable manufacturing overhead is incurred at a rate of $0.50 per unit produced. Annual fixed manufacturing overhead is estimated to be $4,800 ($400 per month) for expected production of 4,800 units for the year. Selling and administrative expenses are estimated at $500 per month plus $0.50 per unit sold.