Horizontal Histogram Chart Question

I’m looking to compare THIS MONTHS (Month To Current Date) vs LAST MONTH (Start of Last Month to Same Time Period Last Month) DURATION in an Horizontal Histogram Chart. Here’s an example in I have in my google sheets of the graph.

Not sure how I can replicate this in AppSheets, particularly on how to create the SLICE from my original data set, and the expressions required to filter THIS MONTH vs LAST MONTH.

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