"given the profit loss (income statement) and balance sheet for Sam's sandwich delivery(table 4-8), answer the following: a. calculate the current and quick ratios. b. using the inventory figure on the balance sheet as average inventory, calculate the inventory turnover ratio. c. calculate the debt-to-equity ratio, debt-to-total-asset ratio, and operating profit margin ratio. d. perform a vertical analysis of the income statement."

Without table 4-8, how do you expect us to help you?

To answer these questions, we'll need to refer to Table 4-8, which provides the income statement and balance sheet for Sam's sandwich delivery. Let's go step by step to calculate each ratio and perform the vertical analysis as requested.

a. Current Ratio and Quick Ratio:
1. Find the balance sheet figures for current assets and current liabilities.
2. Calculate the Current Ratio by dividing current assets by current liabilities.
3. Calculate the Quick Ratio (also known as Acid-Test Ratio) by subtracting inventory from current assets and then dividing the result by current liabilities.

b. Inventory Turnover Ratio:
1. Locate the inventory figure on the balance sheet.
2. Use this figure as the average inventory.
3. Determine the cost of goods sold (COGS) from the income statement.
4. Calculate the Inventory Turnover Ratio by dividing COGS by average inventory.

c. Debt-to-Equity Ratio, Debt-to-Total-Asset Ratio, and Operating Profit Margin Ratio:
1. Identify the balance sheet figures for total liabilities, total equity, and operating profit from the income statement.
2. Calculate the Debt-to-Equity Ratio by dividing total liabilities by total equity.
3. Determine the Debt-to-Total-Asset Ratio by dividing total liabilities by total assets.
4. Calculate the Operating Profit Margin Ratio by dividing operating profit by total revenue.

d. Vertical Analysis of the Income Statement:
1. Review the income statement figures.
2. Calculate each line item as a percentage of total revenue.
3. This will show the vertical analysis (proportions) of each income statement category.

By following these steps, you should be able to calculate the requested ratios and perform a vertical analysis of the income statement using the provided financial data from Table 4-8.