### Metric

Submissions are evaluated on **MAPE (Mean Absolute Percentage Error)**:

$$\text{MAPE} = \frac{1}{n} \sum_{i=1}^{n} \left| \frac{y_i - \hat{y}_i}{y_i} \right|$$

where $y_i$ is the actual price and $\hat{y}_i$ is your predicted price.

**Lower MAPE is better.** A MAPE of 0.25 means your predictions are off by 25% on average.

### Scoring

Your competition points (0–100) are calculated as:

$$\text{points} = \max(0, \min(100, (0.65 - \text{MAPE}) \cdot 200))$$

| MAPE | Points |
|------|--------|
| >= 0.65 | 0 |
| 0.55 | 20 |
| 0.45 | 40 |
| 0.35 | 60 |
| 0.25 | 80 |
| <= 0.15 | 100 |

### Submission Format

For each row in the test set, you must predict the `price`. Your submission file should have exactly 2 columns:

```
Id,price
0,15000.00
1,32500.00
2,8700.00
...
```

The file must contain a header and have the same number of rows as the test set.