Get Price (tax excl.) P.S. 1.7

[Fabio]

Hello i'm trying to print this value (1.png) into product details 

With the following code as you can see seems to work correctly {$product.price_tax_exc}

i have the value i need (2.png) 

Price (tax incl.) is 37,30

Price (tax excl.) is 30,57

Issue comes if products has a discount 

{$product.price_tax_exc} will be 28.114754 and not 30,57

what is the correct code?

Thanks

 

 

 

[Fabio]

Hello, can i have a feedback pls?