> ## Documentation Index
> Fetch the complete documentation index at: /llms.txt
> Use this file to discover all available pages before exploring further.
# Decline Chart
> A metric line draws downward as its value counts down and the ambient background darkens in lockstep.
# Decline Chart
A metric line draws downward as its value counts down and the ambient background darkens in lockstep.
**Decline Chart**
```html decline-chart.html
Decline Chart
```
Copy npx hyperframes add decline-chart to the clipboard
That writes one file: `compositions/components/decline-chart.html`.
## Paste it into your composition
Open `compositions/components/decline-chart.html` and copy what is inside into your own composition.
A component has no size or duration of its own. It takes both from the composition
you paste it into.
## Variables
Every one of these has a default, so the piece works untouched. Set the ones you
want to change on the element:
| Variable | Default | Accepts | What it does |
| - | - | - | - |
| `label` | `Retention` | string | Label shown above the declining value. |
| `start_value` | `82` | 0 to 100, step 1 | Metric value at the start of the decline. |
| `end_value` | `34` | 0 to 100, step 1 | Metric value at the bottom of the decline. |
Set them with `data-variable-values` on the element that mounts it. These are the
defaults, so this behaves exactly like the preview above until you change one:
```html wrap
```
{/* hf:generated-footer */}
Tagged `motion-primitive` `data` `chart` `decline` `metric` `problem`.
## Related topics
* [Browse the complete Catalog](/catalog.md)
* [Add assets and Catalog items in the browser editor](/studio/assets-and-blocks.md)
* [Put blocks together into one video](/concepts/compositions.md)