Financial Ratios and Profitability Explanations

I'm lost on the calculations?? I can talk about why or how investors think about investing in a company but I am not sure I understand the numbers with regard to ratios. Investors will judge a company on

1.Profitability 2.Liquidity 3.how much debt and 4. marketability (product will sell). In short investors want to know they are not investing their money in a sinking ship. Could you please show me how to do the calculations?

You have been asked to create an informative slide presentation to managers, most of whom do not have a technical knowledge of accounting.
First, you will discuss key elements with top executives. Go to the small group discussion board and discuss the following:

How will investors assess the stability of Strident Marks? What are the key financial ratios that measure the stability of an organization? Define stability.

Next, individually, calculate these ratios, file attached

Scenario:
You are a financial analyst in the finance division of Strident Marks, a manufacturing company that has recently gone through the initial public offering (IPO) process and has become a public company. Strident Marks has annual sales revenue of approximately $50 million and makes seven unique and distinct products (which serve seven different markets). Each product is represented by its own division within the company and has its own group of sales, marketing, and manufacturing personnel. Some departments, including human resources and the finance division, support the entire organization. Operations consist of a single headquarters and production (manufacturing) center.

In your role as financial analyst you are responsible for compiling and reporting on budget / forecast data, for assisting your investor relations department, and for assessing and valuing new business opportunities (which will ultimately be presented to upper management). You report directly to the Chief Financial Officer (CFO) and have the use of the accounting department's staff accountants to assist you with your budget / forecast responsibilities.

You have been informed by the CFO that Strident Marks will be aggressively pursuing new business opportunities, which may include expansion through acquisition and the development and implementation of new products. As a publicly traded company, Strident Marks is scrutinized by bankers and investors as never before. In fulfilling your responsibilities you must keep this in mind, and you must instill a new sense of financial discipline in the organization.