When Snowbridge was launched the transfer fees were calculated based on the following parameters which reflected market conditions at the time:
<ul>
<li>Worst Case Gas price: <code>60 Gwei</code></li>
<li><code>ETH:DOT</code> exchange rate: <code>1:450</code></li>
</ul>
This resulted in price in the following prices:&nbsp;
<ul>
<li><code>11.456568 DOT</code> to transfer from Polkadot to Ethereum.</li>
<li><code>0.000399 ETH</code> to transfer from Ethereum to Polkadot.</li>
</ul>
This proposal will change the pricing parameters to:
<ul>
<li>Worst Case Gas price: <code>25 Gwei</code></li>
<li><code>ETH:DOT</code> exchange rate: <code>1:566</code></li>
</ul>
Resulting in the following fees:
<ul>
<li><code>6.1278015332 DOT</code> to transfer from Polkadot to Ethereum.</li>
<li><code>0.000317 ETH</code> to transfer from Ethereum to Polkadot.</li>
</ul>
Old Pricing Params:
<pre><code>setPricingParameters({
 exchangeRate: 2,222,222,222,222,222
 rewards: {
 local: 100,000,000
 remote: 250,000,000,000,000
 }
 feePerGas: 60,000,000,000
 multiplier: 1,333,333,333,333,333,333
})
</code></pre>
New Pricing Params:
<pre><code>setPricingParameters({
 exchangeRate: 1,766,784,452,296,820
 rewards: {
 local: 100,000,000
 remote: 250,000,000,000,000
 }
 feePerGas: 25,000,000,000
 multiplier: 1,333,333,333,333,333,333
})
</code></pre>

See [`Pallet::dispatch_whitelisted_call_with_preimage`].

- **Problem Statement:** Adjusting transfer fees based on changing market conditions for Polkadot to Ethereum and Ethereum to Polkadot transfers.
- **Significance:** Ensuring transfer fees remain competitive and reflective of current market conditions.
- **Proposed Solution:** Changing pricing parameters including worst case gas price and ETH:DOT exchange rate.
- **Expected Outcomes:** Reduced fees for transfers: 6.1278015332 DOT from Polkadot to Ethereum and 0.000317 ETH from Ethereum to Polkadot.

#1127 Snowbridge: Update Bridge Pricing Parameters to Lower Transfer Fees

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