This is a Scheme

The function returns the profit information out of a given record for a sale.

Example: (getProfit '(3 ("10/13/2010" "10/20/2010") (261.54 0.04 -213.25 38.94) ("Regular Air" "Nunavut") "Eldon Base for stackable storage shelf, platinum")) -> -213.25

(define (getProfit sale)

; TODO: Fill this in

0 ; stub -- modify it accordingly

)