Use the following information for this and the next three questions.

SMJ Inc. had the following information on last year's financial statements.

 Sales 

$178,000

Costs

82,500

Other expenses

7,500

Depreciation expense

14,700

Interest expense

8,400

Taxes

21,400

Dividends

12,460

2002 New equity

$5,400

Net new long-term debt

(2,400)

Increase in net fixed assets

17,800

What was the operating cash flow for SMJ?

1.What was the cash flow to creditors for SMJ?

1.What was the cash flow to stockholders of SMJ?

1.What was the change in net working capital for SMJ?

Just need help explaining how to solve these 4 questions, I know what the answer is, just want to know the step by step.