The text humorously contradicts the initial claim of unchanging shipping prices. A provided function calculates shipping costs based on several factors. These factors include shipping type ("Ground," "Two-Day," "Next Day," "Next Day a.m."). The subtotal of the order also significantly impacts the calculated price. Different subtotal ranges result in different shipping charges for each shipping type. For subtotals above $299.99, a percentage-based charge is applied. The percentages vary depending on the chosen shipping method. The function uses nested if-else statements to determine the final shipping cost. The author also criticizes the use of strings instead of enums for shipping types. An advertisement for BuildMaster software concludes the text.