This decision is carried with a $500 per month monetary cost and a $1,000 per month opportunity cost. An opportunity cost describes what you give up/loss of something if you go with a different alternative. Jeanne has the opportunity to rent the house out for $1,500 but decides to rent it for $500 so she’s giving up $1,000 when renting it at a lower price. Jeanne will receive the monetary amount of $500.