Producers of the Broadway musicalAmazing Grace,” which has struggled with poor sales since it began performances over the summer, have decided to throw in the towel at last, posting a closing notice for late October.

The shuttering seems likely to represent a total loss for investors in the show, which never topped $350,000 in weekly grosses and regularly played to houses filled to less than 60% of capacity. The summertime weeks just after the Tony Awards is always a challenge for the launch of a new musical, since tourists come to town hoping to catch either a long-established hit or a recently-crowned Tony champ. This past summer was particularly tough in that another new musical, “Hamilton,” cast a mammoth shadow even before it opened in August.

Written by Broadway tyro Christopher Smith, who penned the music and lyrics and co-wrote the book with Arthur Giron, “Amazing Grace” earned mixed reviews in New York after its 2014 Chicago tryout. Gabriel Barre directs the production, with choreography by Christopher Gatelli. Josh Young, Erin Mackey, Chuck Cooper and Tom Hewitt star.

Producers, led by Carolyn Rossi Copeland, can hope to earn at least a little money from an upcoming national tour of the production, which is in the works from Troika Entertainment.

“Amazing Grace” will close Oct. 25 at the Nederlander Theater.