Segmenting A Measure Within A New Measure

Hi guys,

So - say I've got a measure that measures conversion rate. Let's say the overall conversion rate (called "CNVR" as a calculated measure) is 5%. Let's say that varies by product:

Product A = 7.5%
Product B = 6%
Product C = 3%

Now, lets say I wanted to insert that calculated measure within a new mesaure. E.g if I was trying to project how many leads I'd require to hit my targets, I'd divide my targets by my conversion rate:

E.g. Leads Required = [Sales Target Volume]/[CNVR]

Which would take my sales target volume and divide it by 5%.

However, say I wanted to have that field pull in the conversion rate specifically of Product A, *without* segmenting any other part of the page, how would I do that?

Basically I want to have:

Leads Required = [Sales Target Volume]/[Product A CNVR]. I can insert Product as a slicer on the page, but I don't want to do that.

Thanks,

Bob