Papa John's (PZZA) - Get Papa John's International, Inc. Report shares plunged more than 8% Wednesday after the pizza franchise sales fell short of Wall Street's fourth quarter estimates. Adjusted earnings came in at 88 cents a share, beating estimates of 66 cents a share. Revenue jumped 5.5% from the prior year to $439.6 million, but missed estimates of $447 million. Papa John's same-store sales in North American rose 3.8% but fell short of estimates of 5.9%. This comes as the company began a marketing campaign for its re-launched pan pizza, calling this its "biggest product launch" yet.