Suppose Leroy decides to go as a ghost. Which result would be a cost?
Leroy will spend some time and money to get the costume. Leroy will get to wear the costume he is more excited about.
Leroy is deciding whether to go as a ghost or a superhero to a costume party. He would rather go as a ghost. But he already has a superhero costume.
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 Leroy wants or needs:
Leroy will spend some time and money to get the costume.