For reference, [this](https://github.com/polkadot-fellows/runtimes/pull/131) is the PR that tweaks the ED on system chains, which is part of [the 1.1 release](https://github.com/polkadot-fellows/runtimes/releases/tag/v1.1.0)

**Update: Recommend rejecting this proposal. I will make a new one to go with the Asset Hub upgrade that actually updates the Existential Deposit. See [this PR](https://github.com/polkadot-fellows/runtimes/pull/158) for more details.**

This referendum is related to the reduction of existential deposit on Asset Hubs.

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

```
fee_in_dot * asset_min_balance / dot_existential_deposit
```

So, if you reduce the DOT ED by a factor of 10, you also increase fees in sufficient assets by a factor of 10 (Asset Conversion, coming soon, to avoid all this).

This proposal reduces the minimum balance requirement for all sufficient assets (USDT, USDC, and KSM) by a factor of 10, preserving the ratio. There is also a fourth call to update the metadata for bridged KSM, since that [failed when creating the asset](<122>) due to the `SafeCallFilter`.



### Summary of the Proposal

- The proposal aims to reduce the existential deposit (ED) on Asset Hubs.
- Currently, transaction fees are calculated in DOT and then converted to other assets using a ratio based on minimum balances.
- Reducing the DOT ED by a factor of 10 would increase fees in other assets by the same factor.
- The proposal suggests reducing the minimum balance requirement for assets like USDT, USDC, and KSM by a factor of 10 to maintain the ratio.
- There is also a plan to update the metadata for bridged KSM, which failed previously due to a technical issue.
- The proposal has been updated to align with an upcoming Asset Hub upgrade that will actually update the ED.
- The updated proposal can be found in [this PR](https://github.com/polkadot-fellows/runtimes/pull/158).

call

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Submitted

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whitelisted_caller

The proposal suggests reducing the minimum balance requirement for USDT, USDC, and KSM by a factor of 10 to reduce the existential deposit on Asset Hubs. This will increase fees in sufficient assets by a factor of 10. The proposal also includes updating metadata for bridged KSM.

Update Sufficient Asset Minimum Balances

root

wish_for_change

staking_admin

treasurer

lease_admin

fellowship_admin

general_admin

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referendum_killer

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big_spender

Origin able to dispatch a whitelisted call.

Origin for signaling that the network wishes for some change

Origin able to cancel slashes and manage minimum commission.

Origin for spending up to 10,000,000 DOT from the treasury as well as generally administering it.

Origin for managing the composition of the fellowship.

Origin able to spend around 250 DOT from the treasury at once.

Origin able to spend around 1,000 DOT from the treasury at once.

Origin able to spend around 10,000 DOT from the treasury at once.

Origin able to spend around 100,000 DOT from the treasury at once.

Origin able to spend up to 1,000,000 DOT from the treasury at once.