# CostDelta

> Estimated monthly cost at current usage.

Estimated monthly cost at current usage. Usage-based estimates use the last 7 days of actual use.

## Fields

| Field | Type | Description |
| --- | --- | --- |
| `current_monthly` * | [Money](/docs/api/objects/money/) |  |
| `projected_monthly` * | [Money](/docs/api/objects/money/) |  |
| `delta_monthly` * | [Money](/docs/api/objects/money/) |  |
| `confidence` | `low`, `medium`, `high` |  |
| `note` | string |  |

\* always present

## Example

```json
{
  "current_monthly": {
    "amount": "7.42",
    "currency": "GBP",
    "display": "£7.42"
  },
  "projected_monthly": {
    "amount": "7.42",
    "currency": "GBP",
    "display": "£7.42"
  },
  "delta_monthly": {
    "amount": "7.42",
    "currency": "GBP",
    "display": "£7.42"
  },
  "confidence": "low",
  "note": "Caps are limits, not charges: you are billed for actual use."
}
```