加拿大visa:两个表是该企业和全县的销售额,求企业停业的4个月内损失了多少

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Table 1 SALES FOR CARLSON DEPARTMENT STORE, SEPTEMBER
1992 THROUGH AUGUST 1996
month 1992 93 94 95 96
1 1.45 2.31 2.31 2.56
2 1.80 1.98 1.99 2.28
3 2.03 2.02 2.42 2.69
4 1.99 2.23 2.45 2.48
5 2.32 2.39 2.57 2.73
6 2.20 2.14 2.42 2.37
7 2.13 2.27 2.40 2.31
8 2.43 2.21 2.50 2.23
9 1.71 1.90 2.89 2.09
10 1.90 2.13 2.29 2.54
11 2.74 2.56 2.83 2.97
12 4.20 4.16 4.04 4.35
Table 2 DEPARTMENT STORE SALES FOR THE COUNTY, SEPTEMBER
1992 THROUGH AUGUST 1996
Month 1992 1993 1994 1995 1996
1 46.8 46.8 43.8 48.0
2 48.0 48.6 45.6 51.6
3 60.0 59.4 57.6 57.6
4 57.6 58.2 53.4 58.2
5 61.8 60.6 56.4 60.0
6 58.2 55.2 52.8 57.0
7 56.4 51.0 54.0 57.6
8 63.0 58.8 60.6 61.8
9 55.8 57.6 49.8 47.4 69.0
10 56.4 53.4 54.6 54.6 75.0
11 71.4 71.4 65.4 67.8 85.2
12 117.6 114.0 1022.0 100.2 121.8
1. An estimate of sales had these been no hurricane.
2. An estimate of countywide department store sales had these been no hurricane.
3. Use the countywide department store sales for September through December 1996 and the estimate in part (2) to make a case for or against excess storm-related sales.
4. An estimate of lost sales for the Carlson Department Store for September through December 1996