could you answer question 3,4, and 5?

i have completed the other problems. but the answers thst are blank are the ones i am confused on.

additional information

PR 21-6A Contribution margin, break-even sales, cost-volume-profit chart, margin of safety, and operating leverage Blythe Industries Inc. expects to maintain the same inventories at the end of 2012 as at the beginning of the year. The total of all production costs for the year is therefore assumed to be equal to the cost of goods sold. With this in mind, the various department heads were asked to submit estimates of the costs for their departments during 2012. 1 summary report of these estimates is as follows: It is expected that 8,000 units will be sold at a price of $200 a unit. Maximum sales within the relevant range are 9,00C units. Instructions 1. Prepare an estimated income statement for 2012. 2. What is the expected contribution margin ratio? 3. Determine the break-even sales in units and dollars. 4. Construct a cost-volume-profit chart indicating the break-even sales. 5. What is the expected margin of safety in dollars and as a percentage of sales? 6. Determine the operating leverage. Afar all polnts are plottert, grab and nowe tha labelt provided at the left to identify asch area. For such unit level of alst, enter the total sales dollars and total costs. The chart at right will be plotied as you senter the arinounti Ater all points are plotted, grab and move the tabels provided at the left te identify each area