hi dave,
wow, your explanation is a really cool interpretation! that is a very good idea.
i think because the pieces of the puzzle looked like puzzle pieces, i totally missed the comparison aspect. it's clear there's something shopping related because it's hard to miss the tag outline. shopping online IS like a puzzle given all the choices and stores and that's why comparison engines exist, to help solve that problem.
i think because you have the tag you don't need the cent symbol but how can you make the comparison more apparent?