$\backslash$table$[[,,,$TestCo,,,,,$],[,,,$Balance Sheets,,,,$],[15],[,$Last Year,This Year,,,Last Year,This Year$],[$Assets$,,,$Liabilities and Owner's Equity,$],[$Current Assets,,,Current Liabilities,,$],[$Cash$,250,300,$Accounts Payable,$700,650,],[$AcctRec$,350,400,$Notes Payable,$650,650,],[$Inven$.,850,900,,$Total,,$1,350,1,300,],[$Total$,1,450,1,600,,,8,,,],[,,,$Long Term Debt,$1,150,1,250,],[$Fixed Assets$],[$Net Plant,$-,,,$Owner's Equity,,,$],[$and equipment,$5,850,6,450,$Common Stock and,$1,000,1,100,],[,,$paid in surplus,,,$],[,,$Retained Earnings,$3,800,4,400,],[,,,,$Equity,$4,800,5,500,],[,,,,,,,-],[$Total Assets,$7,300,8,050,$Total $L+OE,,7,300,8,050,],[$b$,,,,,,,],[,,$TestCo,,,,,$],[,$Income Statement,,,,,$],[,$This Year,,,,,$],[\frac{5}{34},,,,,,,,],[31,\backslash$table$[[$Sales$],[$Costs$]],\backslash$table$[[5,000],[2,900]],,,,,,]]$

$\backslash$table$[[,$TestCo$],[$Income Statement,$],[,$This Year$],[$Sales$,5,000],[$Costs$,2,900],[$Depreciation$,600],[$EBIT$,1,500],[$Interest Paid,$300],[$Taxable Income,$1,200],[$Taxes$,400],[$Net Income,$800],[,],[$Dividends$,200],[$Addition to$,],[$Retained Earn.,$600]]$

a$)$ What was the firm's profit margin this year?

b$)$ What was the total asset turnover this year?

c$)$ What was the firm's equity multiplier this year?

d$)$ Use the ratios you calculated in parts a$-$c to determine the Return on Equity by usin DuPont Identity $($be sure to write the formula for the DuPont Identity, then use your answers from parts a$-$c to calculate$).$