What-If Calculation
  
To sleep, perchance to dream. Like...what if we could sell our ear-hair-removers for $17 instead of $15? If we raised the price 2 bucks, would anyone care? Would anyone notice? Would we see any diminution in sales?
What if we got the metal that makes them from China, saving 3 bucks a unit? What would that do to our profit margins?
Our import and shipping costs? Our quality de-hairing procedure? What if...?
Yeah, what-ifs, ands, or butts. They're the domain of spreadsheets on hard drives everywhere.