This is not okay:
The format I need is:
$10,000 and $7,830 (notice the $ sign and commas).
This is something I could achieve in a Pie Chart, passing the value to a gallery and adding:
Text(ThisItem.'ColumnName',"[$-en-US]$###,###")
and then taking the Chart values from that gallery. When I wanted to replicate the same on a bar chart, it just didn't work.