Thank for reply. Please look out: Store 4 is used from 3/2/12@20:50 to 3/7/@3:30 so total will be

18.5 + 3.5 (for 3/1)
2.5 + 3.17 (for 3/2/12)
24 hrs (for each 3/3,3/4,3/5,3/6)
3.5 (for 3/7)


that will make 128 hrs for Store 4/March/2012