> For the complete documentation index, see [llms.txt](https://help.defisaver.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.defisaver.com/features/boost-and-repay/use-case.md).

# Use-case

While the use-case of Boost and Repay is self-explanatory in nature, we can still cover examples in which the tools would be utilized.

<details>

<summary>Boost Use-Case</summary>

Let's use an example where we have:

* 20 ETH collateral
* 35,000 DAI debt

<figure><img src="/files/lWUECgRCKZszHH0vZnbl" alt=""><figcaption></figcaption></figure>

ETH's current price is at $3,836.91 - with the Safety Ratio at 176.52%

If ETH's price starts increasing and reaches $4,000 - we're looking to increase the amount of ETH we have before a potential bull run.

We can get this done in one transaction by using the "Boost" tool located in the "Leverage" tab:

<figure><img src="/files/dVRZhiMhmXQ1qQvmQYY8" alt=""><figcaption></figcaption></figure>

We just need to input how much DAI's worth of ETH we'd like to borrow and add to our position's supplied collateral. So let's input $8,000 of DAI:

<figure><img src="/files/KOt6lpdptFpht4a31hoL" alt=""><figcaption></figcaption></figure>

As we input the amount we'd like to boost, the UI will update to show a preview of what your position will look like before you actually execute the transaction.&#x20;

Clicking "Boost" will show you a pop-up window:

<figure><img src="/files/XwETdyuo5CiJ5V2GT2xP" alt=""><figcaption></figcaption></figure>

From here, you'll see the amount of ETH you'll be adding based on the market rate - along with the option to choose your preferred Exchange route and Slippage limit.\
\
You'll also be provided with all additional fees associated with the transaction under "Additional info:"

If everything looks good, press "Boost", sign the transaction, and you'll successfully increase your exposure to ETH in a single transaction - increasing your profits if ETH's price continues to surge.

</details>

<details>

<summary>Repay Use-Case</summary>

Let's use an example where we have:

* 22.07 ETH collateral
* 43,000 DAI debt

<figure><img src="/files/FKLGN0FH7Wuae3X9MpJ9" alt=""><figcaption></figcaption></figure>

ETH's current price is at $3,836.91 - with the Safety Ratio at 158.57%

If ETH's price starts decreasing and reaches $3,500 - our position is going to start nearing a dangerous Safety Ratio. Based on the Safety Ratio calculations, ETH at $3,500 would put this position's Safety Ratio at 146%

So, we'd like to ensure we move back to a more comfortable Safety Ratio with the Repay tool:

<figure><img src="/files/Lax1QFvNymeN518LEWYE" alt=""><figcaption></figcaption></figure>

We just need to input how much of our ETH collateral we'd like to swap into the DAI debt and repay part of our debt in a single transaction:

<figure><img src="/files/f0VFwvQcIdz5ikgOYBwK" alt=""><figcaption></figcaption></figure>

As we input the amount we'd like to repay, the UI will update to show a preview of what your position will look like before you actually execute the transaction.&#x20;

Clicking "Repay" will show you a pop-up window:

<figure><img src="/files/mfmw1bwqXLuM9W5c8FeD" alt=""><figcaption></figcaption></figure>

From here, you'll see the amount of DAI you'll be repaying based on the market rate - along with the option to choose your preferred Exchange route and Slippage limit.\
\
You'll also be provided with all additional fees associated with the transaction under "Additional info:"

If everything looks good, press "Repay", sign the transaction, and you'll successfully repay part of your debt using collateral from your position in a single transaction - ensuring you're safer from liquidation in case ETH's price continues to crash.

</details>

***

## Related Articles:

* [Boost & Repay](https://help.defisaver.com/features/boost-and-repay)
* [Fees](https://help.defisaver.com/features/boost-and-repay/fees)
* [Compatibility](https://help.defisaver.com/features/boost-and-repay/compatibility)