Watermark Shirts is a specialty retailer offering T-shirts, sweatshirts, and caps. Its most recent annual sales consisted of $16,000 of T-shirts, $10,000 of sweatshirts, and $1,900 of caps. The company is adding polo shirts to the line-up and projects that this addition will result in sales next year of $14,000 of T-shirts, $9000 of sweatshirts, $8700 of polo shirts, and $1,800 of caps. What sales amount should be used when evaluating the Polo shirt project?