I have a shop that uses prices excl tax. I want to add the price incl. tax below the price field as text (not as an editable field or an attribute, just an information).
I've already added a new column to the product grid that shows the price incl tax (using a renderer that returns
$this->helper('tax')->getPrice($product, $product->getFinalPrice(), true);)
But I just can't figure out how to get this working on the product edit price tab? If I had to add an attribute I think it could be added in the Attributes.php (
Mage_Adminhtml_Block_Catalog_Product_Edit_Tab_Attributes), but can I add an info-block/comment/line of text?
It doesn't have to calculate it realtime the price when you enter a price in the price field, just on save/load of the product (with php)?
To sum up, how do i add a custom comment/info text below the price field?
I want to show
$this->helper('tax')->getPrice($product, $product->getFinalPrice(), true); in this comment/info text.