Last year Rosenberg Corp. had $195,000 of assets, $18,775 of net income, and a debt-to-total-assets ratio of 32%. Now suppose the new CFO convinces the president to increase the debt ratio to 48%. Sales and total assets will not be affected, but interest expenses would increase. However, the CFO believes that better cost controls would be sufficient to offset the higher interest expense and thus keep net income unchanged. By how much would the change in the capital structure improve the ROE

Kubin company’s relevant range of production is 18,000 to 22,000 units. when it produces and sells 20,000 units, its average costs per unit are as follows: average cost per unit direct materials $ 7.00 direct labor $ 4.00 variable manufacturing overhead $ 1.50 fixed manufacturing overhead $ 5.00 fixed selling expense $ 3.50 fixed administrative expense $ 2.50 sales commissions $ 1.00 variable administrative expense $ 0.50 required: 1. for financial accounting purposes, what is the total amount of product costs incurred to make 20,000 units? 2. for financial accounting purposes, what is the total amount of period costs incurred to sell 20,000 units? 3. for financial accounting purposes, what is the total amount of product costs incurred to make 22,000 units? 4. for financial accounting purposes, what is the total amount of period costs incurred to sell 18,000 units?