MTA officials are blaming the homeless — and shoddy decor — for a drop in revenue at Grand Central Terminal’s dining concourse.

In the agency’s July report to board members, officials highlighted a 3% drop in gross sales at the glorified food court in 2018.

They pointed the finger at the concourse’s “outdated furniture and design” and the “continuing challenge of the homeless population” — and proposed giving the subterranean plaza a makeover.

“A plan to redesign the dining concourse has been proposed to address these challenges, along with even greater collaboration with Metro-North and MTA Police partners,” the report said.

The concourse’s transformation from a train hall to a dinning area was completed 21 years ago. Now, riders looking for a bite to eat can choose from basics like Hale and Hearty Soups to more refined eateries like Art Bird & Whiskey Bar from renowned chef Art Smith.

David Florio, the MTA’s head of real estate, told The Wall Street Journal the agency will hire consultants in late 2019 or early 2020 for help giving the building’s lower level a fresh look.

He acknowledged that the transit hub’s status as a public space where vagrants hang out is a challenge.

A new audit by state Comptroller Tom DiNapoli found workers contracted by the MTA to deal with the vagrants aren’t doing their part — with the homeless taking “much of the seating intended for dining patrons” while there were few or no workers moving them along during the lunch rush.

Workers at Grand Central spent just 14% of their time conducting outreach, the audit said.