Trying to find an established/formal term for this fallacy:
*“Right now we sell blue jeans for $20 a pair, and we sell 10,000 pairs a month, earning $200,000 a month. So if we increase our blue-jean prices to $100 a pair, then we will earn $1 million a month.”
The flaw being that if the price of blue jeans rises, customers will buy fewer of them, and so you won’t have simply quintupled your revenue by quintupling the product price.
Maybe…“inelastic behavior fallacy?”
Also is there something like an extrapolation fallacy?
e.g. “We doubled our sales of foot spas last month. So, if we plot a graph, we see everyone on earth will own 10 foot spas by the end of next year!”