# Bank

<div align="center"><img src="https://3737230276-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLSj2qVEeJkYKzq8LFl8s%2Fuploads%2FIXyq7kOOM93skhgQa6uX%2Funknown.png?alt=media&#x26;token=4774a93c-9720-4631-a024-05dbf51a343e" alt=""></div>

## What is The Bank and How it Works?

**Bonesville Bank** is the place where you can provide $**GRVE** or **GRAVE/CRO LP** and farm other rewards. We provide **2 different mechanism** that generate rewards for both **Single Token Staking** and **Liquidity Pool Tokens (LP Farm)**. In the [**Bank**](https://app.croskull.com/#/bank) section of our [Dapp](https://app.croskull.com/), you can find 2 different section:&#x20;

* **Central Bank ( Stake $GRVE receive $RUDE )**
* **LP Farm ( Stake GRAVE/CRO LP Token receive $GRVE )**
* **LP Farm ( Stake GRAVE/CRO LP Token receive $RUDE )**
* **LP Farm ( Stake GRAVE/SLSS LP Token receive $RUDE )**

### Central Bank

![Central Bank Contract ](https://3737230276-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLSj2qVEeJkYKzq8LFl8s%2Fuploads%2FRBEAuzYXPDDgF8ZCg395%2Fimage.png?alt=media\&token=c131c43f-6436-41dd-813e-5fae537b30c1)

**Central Bank** enable the Skullers to provide and lock their $**GRVE** for fixed period of time. When  Claim user will receive the calculated $**RUDE** and the Staked $**GRVE** (minus a 0.3% burn fee).

To generate the ARY and rewards, the Central Banks uses a total dynamic algorithm based on the **Sigmoid Formula and some Contract Variables.** The Final user **ARY** is calculated based on:

* The lock-up period (14, 30, 60, 180 or 365 days) - **higher period = higher ARY**,&#x20;
* The amount of staked $**GRVE** + total user [$GRVE](https://croskulls-organization.gitbook.io/croskull/erc20-tokens/grave-usdgrve) % share in the bank - **higher** [**$GRVE**](https://croskulls-organization.gitbook.io/croskull/erc20-tokens/grave-usdgrve) **amount = higher ARY** ,
* &#x20;The amount of **Wishbone** + total user Wishbones % share in the bank ( wishbone is the main ARY Booster – you can use up to 300 wishbones per contract ).&#x20;

The [$**RUDE**](https://croskulls-organization.gitbook.io/croskull/erc20-tokens/rude-usdrude) is paid out at the **end of the lock-up period** and the **ARY** ( Annualized Rude Yield ) will increase every minute while reaching the end.&#x20;

#### Contract Calculator Tool

![Central Bank Contract Calculator](https://3737230276-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLSj2qVEeJkYKzq8LFl8s%2Fuploads%2F635IT8RLuoJlKhH7ZXrm%2Fimage.png?alt=media\&token=d2cc4808-a908-434f-9061-688eb0cb581d)

To make it easier to choose the **best ARY** for you, put in the amount of [$**GRVE**](https://croskulls-organization.gitbook.io/croskull/erc20-tokens/grave-usdgrve) you want to stake in the Calculator section, and play around with different amounts of **wishbones** (0-300, each wishbone costs 0.3 $GRVE) and **contract duration.**&#x20;

Once you hit "**Calculate"** you will see the different options for lock-up periods and how much calculated [$**RUDE**](https://croskulls-organization.gitbook.io/croskull/erc20-tokens/rude-usdrude) rewards you will get at the end of the lock-up period.

#### Other details

{% hint style="success" %}
Bank max. **ARY** is equal to **333**%
{% endhint %}

{% hint style="success" %}
You can run **multiple contracts** at the same time&#x20;
{% endhint %}

{% hint style="success" %}
ARY grows everyday and reach his **Final Value** while approaching the contract end date. ARY and rewards grows only when the contract is un-claimable.
{% endhint %}

{% hint style="info" %}
Max **Wishbones** amount allowed is equal to **300** ( costs 0.3 \* 300 = 90 $GRVE )
{% endhint %}

### GRAVE/CRO LP Farm

![LP Farm View](https://3737230276-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FLSj2qVEeJkYKzq8LFl8s%2Fuploads%2FYWogLWMmqasMSd5s8IPS%2Fimage.png?alt=media\&token=a6404114-012a-46a8-8e23-becbd1078ee6)

Providing Liquidity to our **LP GRAVE/CRO** enables you to **Stake** your LP Token and Farm [$**GRVE**](https://croskulls-organization.gitbook.io/croskull/erc20-tokens/grave-usdgrve) rewards. The LP Farm mechanism is simple, efficient and has low fees. Users can provide GRVE/CRO LP on both [**mm.finance**](https://mm.finance/swap) **and** [**croswap.com**](https://croswap.com/)**.**

Every confirmed block ( avg. 5s on cronos ) the contract will distribuite 0.10 [$**GRVE**](https://croskulls-organization.gitbook.io/croskull/erc20-tokens/grave-usdgrve) among all the stakeholders based on the share percent. Every day approximately 1000 [$**GRVE**](https://croskulls-organization.gitbook.io/croskull/erc20-tokens/grave-usdgrve) are released.&#x20;

The LP Farm Contract has **Rewards** equal to **200 000** [**$GRVE**](https://croskulls-organization.gitbook.io/croskull/erc20-tokens/grave-usdgrve), that will be released until block number **4276755**.

Other available lp's are GRVE/CRO and GRVE/sSLS, with staking inside our bank's **LP Farm** section, both of which lets you farm [**$RUDE**](https://croskulls-organization.gitbook.io/croskull/erc20-tokens/rude-usdrude)**.**