The three ratios: Gross Profit Margin, Operating Profit Margin, and Net Profit Margin are thought to be three of the most important ratios.

1. What are they?

2. How do you calculate the ratios?

3. What do they tell us?

4. Where can you find the same information besides as individual ratios?

5. Why are do you think they are considered the three most important rations?

Please answer each of the questions. Please don't use another answer from Chegg. Thank you.