Suppose Kevin decides to eat the peach cobbler. Which result would be a cost?
Kevin will give up the chance to eat the chips. The chips would have been healthier than the peach cobbler. Kevin will get to eat the peach cobbler. Kevin thinks peach cobbler will taste better than chips would have.
Kevin is deciding whether to eat chips or peach cobbler for an afternoon snack. He would like to eat something tasty, but he is also trying to be healthier.
Before you decide to do something, it is often helpful to list costs and benefits.
Costs are what you give up or spend when you decide to do something. Costs involve giving up things that you want or need.
Benefits are what you gain or save when you decide to do something. Benefits involve gaining something that you want or need.
This result is a cost. It involves giving up or spending something that Kevin wants or needs:
Kevin will give up the chance to eat the chips. The chips would have been healthier than the peach cobbler.