Create a balance sheet that includes net profit margin using a spreadsheet program. Create columns with headings such as Total Sales, Overhead Costs, Assets, Liabilities and Net Profit Margin.

Learn how to build a balance sheet to assess your liabilities, assets and equity, and better understand your financial picture.

A profit and loss statement summarizes a business’s revenue and expenses. Learn how to use a profit and loss statement to understand your business better.

Although each company is unique, calculating the profit and loss statement for a security guard company will follow the same basic formula as any other company.