Can you help me understand how to find sales, gross profit, and net income (loss) please? Thank you!

Analyzing Operational Changes Operating results for department B of Shaw Company during 2016 are as follows: Sales $795,000 Cost of goods sold 480,000 Gross profit 315,000 Direct expenses 215,000 Common expenses 123,000 Total expenses 338,000 Net loss $(23,000) Suppose that department B could increase physical volume of product sold by 10% if it spent an additional $45,000 on advertising while leaving selling prices unchanged. What effect would this have on the department's net income or net loss? (Ignore income tax in your calculations.) Use a negative sign to indicate a net loss answer; otherwise do not use negative signs with your answers. Sales $ 79,500 x Cost of goods sold 528,000 Gross profit Direct expenses 260,000 Common expenses 123,000 Total expenses 383,000 Net income (loss) $ OX