This referendum is related to the reduction of existential deposit on Kusama's Asset Hub.

When you pay fees in `sufficient` assets, the system still calculates the base transaction fee in KSM. It converts it to the asset fee amount using the ratio of minimum balances. So:

```
fee_in_ksm * asset_min_balance / ksm_existential_deposit
```

So, if you reduce the KSM ED by a factor of 10, you also increase fees in sufficient assets by a factor of 10.

This proposal reduces the minimum balance requirement for all sufficient assets (USDT, RMRK, and DOT) by a factor of 10, preserving the ratio. There is also a fourth call to update the metadata for bridged DOT, since that [failed when creating the asset](<258>) due to the `SafeCallFilter`.

The enactment block (21,570,500) is set just before the Asset Hub would upgrade to the lower ED.



See [`Pallet::dispatch_whitelisted_call_with_preimage`].

Problem Statement:
- The problem is that when paying fees in sufficient assets on Kusama's Asset Hub, the system still calculates the base transaction fee in KSM, resulting in higher fees for users.

Significance:
- Reducing the minimum balance requirement for all sufficient assets by a factor of 10 will help lower fees for users on Kusama's Asset Hub.

Proposed Solution:
- The proposal aims to reduce the minimum balance requirement for USDT, RMRK, and DOT by a factor of 10, while also updating the metadata for bridged DOT.

Expected Outcomes:
- By enacting this proposal, users on Kusama's Asset Hub can expect lower fees for transactions in sufficient assets, providing a more cost-effective and user-friendly experience.

#330 Update Sufficient Asset Minimum Balances

No Active Proposals