On a semi-regular basis I find myself with a set of numbers and want an easy to way to get percentile values for them. Google Sheets does a great job with that, but I don't need a full spreadsheet for something so transitory.
All I really want is the percentile values.
I couldn't decide if I wanted values using the nearest ranked method, which provides percentile values picked from the numbers in the given set. Or the interpolated approach which calculates what the percentile value would be. So I did both.