CHAPTER 20 — FINAL PORTFOLIO PROJECT AND PROGRESSION

Run: python Chapter_20_Sustainability_Analysis.py
Keep Chapter_20_Sustainability_Data.csv beside the .py file. 10 days of fictional school café data; the first five days yield 48.8% disposable containers, while the full ten days yield 45.8%. These are different observation periods, not a measured real-world trend. Python 3 standard library only.
