Relative Size Shapes

[Anonymous]

I'm currently creating a scorecard manually with a visual like the following. I'd much prefer to be able to do this directly in Power BI. The triangles are a relative size depending on the data, in this case, it's the $ figure shown.

I'd started looking at creating a custom visual for this, but while I have a small amount of coding exposure, I am very much not a developer so got stuck pretty quickly.