The screen above shows results over 65 weeks for the 20 best performing stores when the same products were not promoted.
The store ranking table indicates that these "Top 20" stores accounted for just over 40% of non-promoted unit volume, as opposed to the almost 60% figure for the top 20 stores when products were promoted. The share by weekday in the units by weekday table closely resembles the values observed when products were promoted.
The distribution of the circles (colored by weekday) along the horizontal axis in the unit sales by store & weekday graph on the lower left-hand corner of the screen indicates less difference between individual store performance on any given weekday then when products were promoted, and the time series lines in the absolute DSI by weekday graph are much more tightly banded together throughout the week.