Product price to reflect quantity selected (store page)

Hi there,
On my store page I'm keen to have my product price updated to a total based on the quantity selected. For example, when a customer selects a quantity of 2, I'd like the $10 price to change to a total of $20.

To be clear, I'm not looking for this total to be a total of all combined products that have been selected (this is what the shopping cart is for), I would simply like the product price to be reflective of the total selected for each individual product.

Me too! Its rather confusing for customers when it doesn't.

Can anyone help please?

thanks