In this scenario, the store admin offers discount 15% for the product Adidas shoe for 10 days.
Step-1: General tab
Since the offers is going to be available for only 10 days, you will have to mention the validity date here
Validity = 12/12/2017 - 12/22/2017
Step-2 : Condition tab
Choose the product to which you wants to offer a discount and click Next.
Step-3 : Discount tab
Set the quantity range, discount type and value and click save rule.
Step-4 : Frontend demo