1. Dulaney's Stores has posted the following yearly earnings and expenses: EARNINGS AND EXPENSES (YEAR ENDING JANUARY 2012) Sales $50,000,000 Cost of goods sold (COGS) Pretax earnings $30,000,000 $5,000,000 SELECTED BALANCE SHEET ITEMS Merchandise Inventory $2,500,000 Total assets $8,000,000 () What is Dulaney's current profit margin? What is its current yearly ROA? b. )Suppose COGS and merchandise inventory were each cut by 10%. What would be the new pretax profit margin and ROA? c. () Based on the current profit margin, how much additional sales would Dulaney have to generate in order to have the same effect on pretax earnings as a 10% decrease in merchandise costs