Tableau calculation with attributes

Question

I'm new with tableau and I try to calculate with different attributes from one dimension and one measure.

I want to calculate the sum of the attributes RC,RD and RP and divide this by RI. I would be very thankfull if you can help me.

Answer 1

Create calculation fields

if [Rrid] = 'RC' or [Rrid] = 'RD' or [Rrid] = 'RP' then [Rrem] end

 And divide the line

sum(calc1) / sum(calc2)

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