Comparing FY's In A Matrix From A Single Date Column Within Data Ideally Using SAMEPERIODLASTYEAR

I've searched the forums for hours now, but can't seem to find a solution that will work for me.

I'm using a matrix that almost works, but not the way I want.  In the matrix below, FY19 is compared to FY20.  The problem is FY19 is displaying data for an entire fiscal year (FY), while FY20 is YTD.  That's clearly not a fair comparison since we have 2.5 months left in our FY.  I'd like to use SAMEPERIODLASTYEAR if possible, due to it's ability to filter right to the day when needed.

I have a 'FY Date' calendar marked as a Date Calendar I've customized with a definition for our FY.  FY is in the Columns field for the matrix.  The FY ($) is in Values.

FY is in the 'FY Date' calendar defined as: 

"FY", IF (Month([Date]) < 10, YEAR([Date]), YEAR([Date]) + 1)

I created 2 working measures:

Total Sales LFYTD = CALCULATE(CALCULATE([Total Sales], SAMEPERIODLASTYEAR('FY Date'[Date])), FILTER('FY Date', 'FY Date'[Date] <= TODAY()))

and...

Total Sales This FYTD = CALCULATE(SUM('Invoices Details'[INVOICE TOTAL]), FILTER('FY Date', 'FY Date'[Date] >= VALUE("01-OCT-19")))

Sorry for the hard-coded date.  I'll fix later.

...and Total Sales is a measure:

Total Sales = SUM('Invoices Details'[INVOICE TOTAL])

As a work-around, I created a bookmarked button that displayed the following 4 individual boxes, each as a measure (nevermind that the totals are different from the matrix values):

Not ideal...

BTW: I renamed [INVOICE TOTAL] as FY ($) in the matrix.

For some reason I can't figure out how to combine the 2 measures (LFYTD and FYTD) into a single measure which I need to keep the matrix functional as it is, as I need to drop a single measure into the Values field in order to display as above.

Any suggestions are appreciated.