When something new works compared to your proven promotions, move it into the 80 percent group get started testing something else in the 20 percent category. It is a painstaking process and requires much patience. https://s5ft7byoxtyxt3qm4Nlm3jnmayifznlwompiclr3siidkjkpnz4a.Webpkgcache.com/doc/-/s/gyeongshin.com%2Fksen%2Fbbs%2Fboard.php%3Fbo_table%3Dfree%26wr_id%3D1111694