How to calculate a percentage with ambiguous numbers?

How to calculate a percentage with ambiguous numbers?
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answer:What do you think constitutes “enjoying” the class? Just 5s? 4s and 5s? 3s, 4s, and 5s? I would not interpret N/A as enjoying the class, but since they still took the survey they should be counted in your whole. Once you set your criterion, count the number of students who selected those values (just 5s, 4s and 5s, etc) and divide that by the total number of students who took the survey.
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