Abby has always dreamed of having her own ice cream shop. Now as a young entrepreneur she has decided to pursue her dream, but she needs some help in determining the financial viability of her plan. She has come up with a list of income and expense parameters and needs a simple program to input these parameters and calculate the monthly profit or loss as well as performing some variable cost what-if analysis. For expenses, she has:

Raw ingredient cost per serving
Hourly labor rate
Real estate monthly rental
Utilities per month
Monthly advertising budget
On the income side, she has:

Selling price per serving (assume only one size for simplicity)
Number of servings sold per month
Based on some research, she has determined that a single employee can run the shop and she plans to have the shop open eight hours per day and six days per week.

Best Practices to Follow:

Write detailed comments and doc-strings.
Use logical variable names with a consistent convention.
Organize and structure your code for readability.
Use hand calculations to verify the formulas in your code. I. e. write your own test cases to check correctness.
Create the text-based, menu interface

Write a Python script with a menu driven, text-based user interface that looks like this:

Expenses:
1. Cost per serving: 1.0
2. Labor rate per hour: 7.5
3. Shop rental per month: 800
4. Utilities per month: 150
5. Advertising budget per month: 100

Income:
6. Selling price (each): 4.0
7. Servings sold per month: 500