Shopping at Walmart is getting a lot cheaper (WMT)

Grocery prices are in a free-fall. 
Food prices have declined for nine straight months in the US, marking one of the longest stretches of food deflation in 50 years.
We went to Walmart to find out just how far prices have fallen at the No. 1 grocery store in the US.
We compared the prices of 34 items at a store in Richmond, Virginia on Tuesday to the prices of the same items at the same store in December 2015.
The result? The basket of groceries