Check these sites.
http://en.wikipedia.org/wiki/Profit_(economics)
http://www.extension.iastate.edu/agdm/wholefarm/html/c3-24.html
After you've studied these sites, we'll be happy to check your answer.
defferences and similarities on profit and prfitability
2 answers
http://www.jiskha.com/display.cgi?id=1253641387