Hi Eric KALONJI,
Thank you for reaching out to us on Microsoft Q&A forum.
Kindly complete all the units in module https://learn.microsoft.com/en-us/training/modules/dax-power-bi-add-measures/
It's clearly mention in Unit 2 profit column will explain in upcoming units. Kindly refer the below screenshot.
It's explained in Unit 3, kindly refer the below screenshot.
If you are still facing any issue, please let us know in the comments. We are glad to help you.
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Thank you.