Got to Account, click on My Products and then on Price Formulas. 

Above the search field on Price Formulas, you have the NEW PRICE FORMULA button.

Click on it and start creating your new formula.

Here are the fields you need to complete and what each of them mean:

  • Price Formula Name: Where you need to give a name to your formula.

  • Item Cost Range Min, Item Cost Range Max, Profit % + Fixed Price and Round up are essential parts of your formula, so pay extra attention to all these fields: 

            - Minimum and maximum item cost ranges: the price limits where your formula can be applied; 

            - Profit or/and Fixed Profit: the percentage plus the fixed profit you want to make when selling the product(s);

            - Round Up: it's an optional field, only check this if you want to round up the price.

  • Define Interval: Check this box if you want to make your formula available for a specific period.

  • Use compare at price (this is a sale price formula): Check this box if your store supports this feature - compared at price/crossed prices. The markup price will show as crossed and your formula price as the product price. For example, 30$ would be the formula price and 50$ the crossed price. 

  • Include shipping cost to main location in the product price: Check this box if you want the cost of shipping the product to your main location to be added to the product price after the formula has been applied. 

  • If product has RRP and Selling Price < RRP, set the Selling Price to equal RRP (Retail Recommended Price): Check this box if your selling price is under the RRP and you want to have the final price the same as the RRP.

That’s what Formulas are and the fields you have to fill in to have a functional formula!

See this article for more details: What is a sale price formula and how does it work?