REVIEW: Use the following to answer questions 28 - 32 T&JR Corp reports the following income statement results: Gross profit Interest expense Sales discounts Net Sales Operating expense Effective tax rate $373,600 2,000 12,000 800,000 291,000 20% 28. $ Calculate Sales. Calculate Income before Income tax (IBT). Calculate net income. -4 _% Calculate the gross profit margin (one decimal place) _% Calculate the profit margin (two decimal places)