With low prices at the core of its value prop for consumers, Walmart grocery may actually benefit from rising inflation in food and beverage categories. The company gained share in grocery in the second quarter of FY21, with sales rising 6 percent, the retailer announced on Tuesday (Aug. 17). This increase amounted to a $2.4 billion increase in food sales year over year, and a roughly $5.5 billion increase on a two-year basis.