simple pricing caclulation

[jeromeclic79eb]

Hi,

I am using Magento 2.4.

The product price is 12.95 and from 12 items there is a 10% discount.

My calculation is:

$priceHelper = $objectManager->create('Magento\Framework\Pricing\Helper\Data');
$priceHelper->currency(($price*12)-($price*12*0.1), true, false);

My result is therefore 139.86 (which seems correct to me) but the cart is showing me 139.92 after adding 12 products... 

So I have 2 questions:

- Is there any Magento functionality to get the final price for a given product, something like:

$finalPrice = $product->calculatePriceByQty($quantity);

- Why would the cart have this slightly different result? (I am not using any "Cart Price rule" or "Catalog Price Rule")

Thanks for any help or hint.

[Sanjay Jethva · Accepted solution]

Hello @jeromeclic79eb 

Your product price is 12.95 and after applying a 10% discount on it, the final price is 11.655.

In Magento, it takes the price as 11.66 therefore the calculation of this is 11.66*12 = 139.92 and price is 11.655*12 = 139.86

I hope it helps.

[jeromeclic79eb]

Thanks so much Sanjay! Yes, this makes sense now. In all the coding I was not even considering this option...