In terms of grocery stores seeing more revenue, This is likely largely explained by a shift in spending of food dollars from restaurants to grocery stores. You go to work, you generally buy lunch somewhere, and people can't go out to eat anymore. Delivery still exists, but I wonder how they are doing- there is a general sense of fear around having people come to your house.

I would only actually cook maybe 1.5 meals a week at home before this- lunch was served at my job, Friday/Saturday we would go out to eat, I would cook on Sunday and snack on whatever during the week.