“Ghost” won’t haunt Broadway much longer, with the musical posting a closing notice for Aug. 18.Earning a number of pans from prominent critics and logging sales that have been middling at best, the show’s demise had already seemed imminent to industry observers. For about the last month, the tuner — which likely carries a high running cost, given its complicated, high-tech staging — has pulled in between $500,000 and $600,000 per week, last week playing to an average audience capacity of 57%. The tuner found a stronger foothold in London, where the show bowed in 2011 and is still running. That production shutters in October. Banking on the strength of a title familiar from the 1990 film on which the musical is based, producers plan a U.S. tour of the show for fall 2013, while additional productions are on deck to open in Korea, Germany, Sweden, Hungary, Japan, China and Australia. “Ghost” has a book by original screenwriter Bruce Joel Rubin with music by Dave Stewart (of the band Eurythmics) and music producer Glen Ballard. Matthew Warchus (“God of Carnage”) helms the show, which earned Tony noms for lighting and set design as well as a featured thesping nod for Da’Vine Joy Randolph, who plays the wacky psychic portrayed by Whoopi Goldberg in the film. “Ghost” has so far earned about $11 million in the 19 weeks the production has been running on the Main Stem. Show is produced by Colin Ingram Prods., Hello Entertainment/David Garfinkle, Adam Silberman, Donovan Mannato, MJE Prods. and Patricia Lambrecht in association with Paramount Pictures. Shuttering leaves Broadway’s Lunt-Fontanne Theater available. No future tenant has yet been announced, although some in the industry predict the musical adaptation of “A Christmas Story” will move into the venue for a holiday run.