Kentucky Fried Chicken has been pulling out all the stops to lure millennials lately, but perhaps the chain should be focusing on their moms. According to data provided by Yum Brands, KFC's best day of business is Mother's Day, and it's not even close. The chain claims to see a 50 percent sales jump on the annual holiday to celebrate Mom.

KFC says it serves approximately 370,000 families each year on Mother's Day. That translates to 1.5 million pounds of chicken, 6.5 million pieces of chicken, 815,000 servings of mashed potatoes and gravy, and 470,000 servings of cole slaw. Apparently the biggest Mother's Day chain chicken cravings are found in the Rust Belt. The cities of Bluefield, Va.; Clarksburg, W. Va.; Erie, Penn.; Topeka, Kan.; and Charleston, Ohio, are where you're most likely to find a dining room full of matriarchs this Sunday.

Update, May 12, 2017: How is KFC hoping to lure moms (or perhaps more accurately, their delinquent-when-it-comes-to-gift-giving children) this year? By offering up targeted ads on Facebook that, as Adweek reports, "will zero in on Facebook users when they are nearby one of the fast-food chain's locations."

In addition to the Facebook campaign, KFC's leaned in hard on the Mother's Day market this year, unleashing a tongue-in-cheek romance novel (title: Wings of Desire) and in New Zealand, spearheading a marketing stunt involving chicken-flavored chocolates.

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