Add a custom product attribute under price in shop page, product page and featured products.

For a customer i need some work done to a woocommerce webshop. The website is www.gova.no. The customer need added a product attribute added right under the product price. almost all products have variants. On the attached picture named [login to view URL] you can see how the customer want the product attribute. On some products the text will be pr piece and on some pr kilo. So the product attribute just be a blank field where my customer add ex. 110 kr pr kg or 18,50 kr pr stk(piece). On some product the text might be a bit long, ex. Lokal levering 110kr pr kg/ Henting 100kr pr kg. The 3 other pictures show where to add it. All bids the got prewritten bid details offering to make a website will be removed. This job is a rush job