| Value | Category | Cases | |
|---|---|---|---|
| 0 | The price has decreased | 4 |
5.1%
|
| 1 | The price has remained unchanged | 6 |
7.7%
|
| 2 | The price has increased | 66 |
84.6%
|
| 3 | 2 |
2.6%
|
|
| -9 | 25 | ||
| -7 | 30 |