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| DAY | PRICE | change |
|---|---|---|
| 20110101 | 1 | null |
| 20110107 | 1.25 | 0.25 |
| 20110108 | 2 | 0.75 |
| 20110110 | 1.5 | -0.5 |
| DAY | PRICE | change |
|---|---|---|
| 20110101 | 1 | null |
| 20110107 | 1.25 | 0.25 |
| 20110108 | 2 | 0.75 |
| 20110110 | 1.5 | -0.5 |