Red flag#1: the breeder is trying to sell you a "ckc" registered "98.49575728 wolfdog." Unless exact lineage is known from the F1cross, it is impossible to know %. A good breeder will use LC,MC,HC terminology. The ckc thing is just what bad breeders like to tack on in order to charge you more money. Literally any mutt can be registered as anything under a ckc.