Copy Range from Excel to Powerpoint Slide

I have Chart and a range, I want to copy from excel to powerpoint slide. I could copy/paste the Chart. But I cannot copy the Range to the slide as a text box.

I want to put text box right at the bottom of the Chart, so that it looks like a Chart detail.

Here is the code, I found from Peltiertech.com.

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This code can copy the Chart title and put it as a Powerpoint slide title. However, I want to use a range, to show us in the bottom center of the chart.

I am attaching the sample sheet here. Thanks.