The Wilmington-based owners of the Fuzzy Peach frozen yogurt stores have sold most locations to U-Swirl, Inc. for a purchase price that could be as high as $830,000 depending on royalties. Three UNC-Wilmington business school grads started the company as one Wilmington store and expanded to 17 franchises in four states. North Carolina has several coastal stores, two in the Charlotte area and one in Dunn. The purchaser, U-Swirl, has 286 frozen yogurt shops across the U.S. The sale does not include…