Abstract: A content item may be received from an author and offered to customers on behalf of the author. A promotional activity associated with the content item may be conducted or performed. A baseline amount of sales expected for the content item during a time period associated with the promotional activity may be determined. The actual amount of sales of the content item during the time period may also be determined. Based on the baseline amount of sales and the actual amount of sales, the financial impact of the promotional activity may be determined. The expected financial impact of a future promotional activity for the content item that has yet to occur may be predicted. Some or all of the data may be visually presented to the author via a self-service interface.