In this lesson students will figure out the cost of debt. The lesson includes a presentation about debt with a video about credit cards. Included is an exercise where students will figure out how long it will take to pay off a debt based on a balance of $8,000 with varying rates. An excel spreadsheet is provided with a built in debt calculator and sheets with exercises. The students will then figure out how much a purchase that they are interested in will cost them if they use a credit card with varying rates. The lesson is provided as a pdf and with a link to the Google Slides Presentation.