| A | B | |
|---|---|---|
1 | This file contains information on sales. | |
2 | Data are organized by brand name, and for each brand, we have the ID number for the item sold, and how many are sold. | |
3 | ||
4 | ||
5 | Brand 1 | n |
6 | 1234 | 8 |
7 | 8721 | 2 |
8 | 1822 | 3 |
9 | Brand 2 | n |
10 | 3333 | 1 |
11 | 2156 | 3 |
12 | 3987 | 6 |
13 | 3216 | 5 |