I am having some serious problems trying to figure out questions 6 & 7. Number six is the one that is really difficult. Any help would be appreciated.

Determine the amount of sales (units) that would be necessary under reak-Even Sales Under Present and Proposed Conditions Darby Company, operating at full capacity, sold 125,550 units at a price of $60 per unit during the current year. Its income statement for the current year is as follows: Sales Cost of goods sold Gross profit Expenses 57,533,000 3,720,000 53,813,000 Selling expenses $1,860,000 Administrative expenses 1,850,000 Total expenses 3,720,000 Income from operations $93,000 The division of costs between fixed and variable is as follows: Variable Fixed Cost of goods sold Selling expenses Administrative expenses Management is considering a plant expansion program that will permit an increase of $600,000 in yearly sales. The expansion will increase fixed costs by $60,000, but will not affect the relationship between sales and variable costs. Required: 1. Determine the total variable costs and the total fixed costs for the current year. Enter the final answers rounded to the nearest dollar. Total variable costs Total fixed costs 2. Determine (a) the unit variable cost and (b) the unit contribution margin for the current year. Enter the final answers rounded to two decimal places. Unit variable cost 39.26 Unit contribution margin 3. Compute the break-even sales (units) for the current year. Enter the final answers rounded to the nearest whole number 30% 75% 25% 50% 50% 4,929,000.00 2,511,000.00 20.74 121,070 units