Number of stores
1
2
3
4
5
6
7
Si (piece)
550
580
480
460
520
500
540
si (piece)
50
60
55
40
50
55
45
(yuan/piece)
3
4
3
5
5
4
3
Li (day)
2
1.5
2.5
2
1.5
1.5
2
(piece)
55
80
60
70
60
50
65
| Number of stores | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Si (piece) | 550 | 580 | 480 | 460 | 520 | 500 | 540 |
| si (piece) | 50 | 60 | 55 | 40 | 50 | 55 | 45 |
|
| 3 | 4 | 3 | 5 | 5 | 4 | 3 |
| Li (day) | 2 | 1.5 | 2.5 | 2 | 1.5 | 1.5 | 2 |
| (piece) | 55 | 80 | 60 | 70 | 60 | 50 | 65 |