Sergei repairs violins. He owns a rare Stradivarius tuning peg, which he bought in 1981 for $213. Over time, he's seen it reach a value on eBay of $330 at its height and $157 at its low. Currently, it could sell for $285 on the open market. If Sergei is thinking about building a new Frankenstein violin from assorted parts (including the rare peg) as a side venture, what would he use as the relevant cost of the tuning peg?

Answer rating: 100% (QA)

There are two main approaches Sergei can consider for the cost of the tuning peg in his Frankenstein ... View the full answer