If you are pulling data from a field with separate values, Dynamic List fields will show the saved value. If you would like to show the option label instead, use the code below. Just replace 485 with the ID of the field that your Dynamic List field is retrieving its value from.

If you would like users to enter a coupon code in a form and get a discount depending on the code they entered, use this code example. In order for this code to work, you will need to create a new form and add a single line text field for the discount amount. Submit an entry for a discount amount. The coupon code will go in the entry key box. Submit a new entry for each coupon code.