In order to configure tier pricing please follow the steps below:
1. Log in to the Magento admin panel and open the product configuration page.
2. In the “Prices” tab you can see the “Tier Price” section. Tier prices are used for those customers who are willing to order multiple products and you want to reward them by giving a discount. Once you’ve added the tier price, you can select the customer group that the price will be valid for.
3. Set the website, the quantity of products and a new price.