please help with the following

Last year Sanderson, Inc. had sales of $3 million. The firm's cost of its goods sold came to $2 million, operating expenses excluding depreciation of $100,000 were $400,000, and the firm paid $150,000 in interest on its bank loans. Also, the corporation received $50,000 in dividend income (from a company in which it owned less than 20 percent of its shares) but paid $25,000 in the form of dividends to its own common stockholders Calculate the corporation's tax liability. What are the firm's average and marginal tax rates? Complete the steps below using cell references to given data or previous calculations. In some cases, a simple cell reference is all you need. To copy/paste a formula across a row or down a column, an absolute cell reference or a mixed cell reference may be preferred. If a specific Excel function is to be used, the directions will specify the use of that function. Do not type in numerical data into a cell or function. Instead, make a reference to the cell in which the data is found. Make your computations only in the green cells highlighted below. In all cases, unless otherwise directed, use the earliest appearance of the data in your formulas, usually the Given Data section. Sales Revenue COGS Cash Operating Expenses Depreciation Expense Interest Expense Dividend Income Dividends Paid $3,000,000.00 $2,000,000.00 $400,000.00 $100,000.00 $150,000.00 $50,000.00 $25,000.00 of the dividends it receives. The firm pays tax on Dividend Income taxable Total Revenues Total Operating Expenses Net Operating Income Income before Taxes Taxable Amount Taxable Income (2015) $0 - $50,000 $50,001-$75,000 $75,001-$100.000 $100,001-$335.000 $335,001-$10,000,000 $10,000,001-$15,000,000 $15,000,001$18,333,333 Over $18,333,333 Marginal Tax Rate 15% 25% 34% 39% 34% 35% 38% 35% $10,000,001-$15,000,000 $15,000,001$18,333,333 Over $18,333,333 35% 38% 35% Income Tax (Tax Liability) Net Income Marginal Tax rate Average tax rate