> For the complete documentation index, see [llms.txt](https://doken.gitbook.io/doken-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doken.gitbook.io/doken-documentation/project-informations/launchpad-fees-in-detail.md).

# Launchpad Fees In Detail

How does we take the fees for launchpad exactly ?

It will be easier for you to understand how it works with a case study, so lets make a simple example here.

Lets say, theres a token called **Dummy Token** going to create a presale with this configuration

| Features                     | Amount       |
| ---------------------------- | ------------ |
| Presale Rate                 | 1 BNB = 1000 |
| Listing Rate                 | 1 BNB = 800  |
| Liquidity Allocation for DEX | 90%          |
| SoftCap                      | 10 BNB       |
| HardCap                      | 20 BNB       |
| Unsold Tokens                | Refund       |

So, the dev will required **34,400** Dummy Token for creating the presale

| Features        | Amount             |
| --------------- | ------------------ |
| Supply for Sale | 20,000 DummyToken  |
| Supply for Liq  | 14,400 Dummy Token |

Then, lets say the raised amount is **18 BNB,** which is not filled the hardcap, but filled the softcap. So, when the project owner finalize the launchpad, this is what happened.

First, the contract will take **2%** from the raised bnb as the finalization fees ( 0.36 BNB ) , which makes the raised amount left is **17.64 BNB**

Then, the contract will recalculate the supply required for adding liquidity, based on the liquidity allocation for dex against the raised bnb left

BNB Used For Liquidity = **90%\*17.64 ( LiquidityAlloc% \* BNBAfterPayment ) = 15.876 BNB**\
Tokens Used For Liquidity = **15.876\*1/0.00125 ( BNBUsedForLiq \* ListingRate ) = 12,700 DummyToken**

When we see that numbers, we already knew that the deposited supply for Liquidity ( 14,400 ) is greater than the Tokens Used For Liquidity ( 12,700 ), so what we do with the difference amount of between that numbers ? Yes, we burn it, so we will burn **1700 DummyToken ( This is what we mean by we will burn any unused liquidity supply )**

That is the first burn, then we will calculate, is there any unsold token from the sale supply ?

First we know that the presale is only raised 18BNB, which if we calculated based on the presale rate, it means that the sold tokens is **18BNB\*1/0,001 = 18000,** and yet we deposited 20,000 DummyToken for sale.

So we have 2,000 Unsold tokens, and then what we do with that supply ? yes, **it depends on how the launchpad creator configure it.** They can set it to wether burn or refund it back to the wallet, but on this case, it will be **Refunded** to the launchpad creator wallet.

And then, we sill have about **1.764 BNB** left, that will be sent to Launchpad Creator wallet ( since they allocate 90% of raised fund for liquidity )

Thats it, thats how our launchpad calculate