Authors: Matthew, Vyapak, Nathan, Riley

Run through main.py to acces an output of total revenue over the year, peak transaction times,
the percentage of customers with a rewards account, the use of coupons and lost revenue, and 
an in-depth analysis of our biggest customers.

Each individual function is written in its own file as follows:
    analysis.py             - Main author: Riley    - x
    coupon_analysis.py      - Main author: Matthew  - Counts the total number of coupons used and how much revenue was lost.
    peak.py                 - Main author: Vyapak   - 
    revenue_by_state.py     - Main Author: Nate     - Determines the revenue and quantity of transactions by State.
    rewards_percents.py     - Main author: Nate     - Determines the percent of transactions with accounts.
    total_sales.py          - Main author: Matthew  - Sums the total amount of sales throughout the year.