Suppose Audrey decides to go on the screaming swing. Which result would be a cost?
Audrey will save some ride tickets. She needs fewer tickets to go on the screaming swing than on the log ride. Audrey will give up the chance to go on the log ride. She would have had more fun on that ride.
Audrey is deciding which ride to go on at the fair. She can go on either the log ride or the screaming swing. She wants to have as much fun as possible at the fair.
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 Audrey wants or needs:
Audrey will give up the chance to go on the log ride. She would have had more fun on that ride.