Soda isn't my preference and personally I'd probably skip out, but it feels disingenuous to completely ignore something included in the price when discussing the value of an item.
That's why I have percentages for both the dog alone and the combo.
That's why I have percentages for both the dog alone and the combo.
My original point is that by changing what metric and how much of the combo you look at the calculated loss can vary significantly: over an order of magnitude difference between the dog-only volume loss and the refilled drink calorie loss.
lies, damned lies, and statistics.
The option to get water is a meaningless observation that doesn't invalidate the assessment of what you get for the money.