Store size
 
The store must have a minimum size 800 sq ft to the ideal size of 3500 sq ft
 
How the size of a shop attached to the sales?
 
Store size 600 sq ft 1000 sq ft 1500 sq ft
Units  1600 2400 4000
Increase space   66% 150%
Increse Units   50% 66%
Increase sales   150% 166%
Increase of costs   30% 50%

(The above example is a real result from stores after years of operation grew the sales area by taking over the nearby store)