Selling stacked currency

(Edit: This was meant for POE2, I think I posted it in the wrong place, not sure if I can delete)

When trading currency for gold you if you sell a stack you only get the value in gold as if you only sold a single item

so if sell a single orb of augmentation

1 sells for 30

But if I sell a stack of say 3 I still get 30 instead of the 90 I should.