Greetings, @englishemprise.
Hey newcomer! I can provide you with some information to help you out.
There are particular conditions that you can set for your rules that should help you get the results you need. You can also create another rule by going to the Lists menu and selecting New in the "Price Rule List" option. Here's a guide that will give you all the details to assist you along the way:
Use Advanced Pricing
If you start to run into trouble through the instructions, don't hesitate to reach back out. The Community is always here to lend a helping hand. Have a splendid day!