Here’s how much you’re saving in military commissaries January 26 Socially-distanced, masked shoppers wait to pay for their groceries April 16, 2020, inside the commissary at Travis Air Force Base, Calif. (Tech. Sgt. James Hodgman/Air Force) After a couple of years of increases, commissary savings slipped in U.S. stores in 2020, according to results from the most recent commissary savings report. Savings in U.S. commissaries decreased by 1.2 points — down to 21.1 percent in 2020 from the 22.3 percent savings calculated in 2019. Commissary officials compare prices in each geographic area to determine how much, on average, a commissary shopper could expect to save on grocery purchases compared with local commercial grocers in that area outside the gate.