explain the steps and answer on an excel worksheet please.

20. The Excel file President's Inn Guest Database pro- vides a list of customers, rooms they occupied, arrival and departure dates, number of occupants, and daily rate for a small bed-and-breakfast inn during one month. Room rates include breakfast and are the same for one or two guests; however, any additional guests must pay an extra $20 per person per day for breakfastt Parties staying for seven days or more receive a 10% discount on the room rate as well as any additional breakfast fees. Modify the spreadsheet to calculate the number of days that each party stayed at the inn and the total revenue for the length of stay. 20. The Excel file President's Inn Guest Database pro- vides a list of customers, rooms they occupied, arrival and departure dates, number of occupants, and daily rate for a small bed-and-breakfast inn during one month. Room rates include breakfast and are the same for one or two guests; however, any additional guests must pay an extra $20 per person per day for breakfastt Parties staying for seven days or more receive a 10% discount on the room rate as well as any additional breakfast fees. Modify the spreadsheet to calculate the number of days that each party stayed at the inn and the total revenue for the length of stay