Count number of values/strings and divide them

[#1]

Hello

I'm trying to create a Barchart where I want to count the number of values/strings in two fields and then divide one with the other. Example, Bikes per person.

If i have one field containing the bikes and every row is a description of a bike owned by a person, every person is the id number of a person.

I've tried the count(Bikes)/Count(Persons), but this just gives me "1" on the barchart as a value, and I know this is not the correct value. Both fields are primary keys if it matters.

Any suggestions on how I can make this work?

Thanks in advance!

[#2 · Accepted solution]

Use distinct.

count(distinct Bikes)/Count( distinct Persons)

Not sure about syntax, look it up.