I can assure you, a tandem has an enormous variable cost. It costs the business ~$80 in cash to put the tandem in the air. This does not include fixed costs suc

I can assure you, a tandem has an enormous variable cost. It costs the business ~$80 in cash to put the tandem in the air. This does not include fixed costs such as office staff labor, marketing, the lights, building rent, equipment maintenance and purchase costs, etc.