200 chips = 5400 US$, it's 27 US$ per chip, or 108 US$ per four chips in one Jupiter. "We sell these chips in sets of 200, for a considerably lower sum than we paid for them ourselves". Don't know how they define "considerably less", but it may be something like they've paid 110-150 US$ for four chips per Jupiter. Remind me again what were those Jupiters priced?