Curse you for pointing out a big hole in my spurious reasoning!
Counter nitpick: I don't think this maths correctly adjusts for different average per unit price.
I think it would then be (2.5X/70)/20 versus (X/11)/40, or 560:440, or D&D selling about 20% more of its twice-the-price products on average.
Nope the 70/11 factors go into making the average price (which we're not inputing as a formula) not into the amount sold.
Revenue = unit price * number sold. You provided revenue as X and 2.5X. I've provided unit price as $40 and $20 (based on a most scientific survey of weighted average price of product sold, of course). The number of product types that make up that average isn't meaningful.
Yes, but other than the fact that we're making all the numbers up as we go along, this analysis is clearly spot on.![]()