The self-checkout has reduced length of lines by a third and the time spent in lines by a third. We estimate that 30 percent of all sales are made through self-checkout at stores equipped with them.  -   John Simley     Quotes
The self-checkout has reduced length of lines by a third and the time spent in lines by a third. We estimate that 30 percent of all sales are made through self-checkout at stores equipped with them. John Simley