Minting Fee does not shown/applied in Vault Summary

[otoole-brendan]

What is the Problem Being Solved?

When a user creates a vault or adjusts a vault - a minting fee applies to the minted IST amount - which is added to the user's IST overall debt amount. This actual amount is not reflected in the 'Vault Summary' preview and so it's not clear to the user what amount that is.

The dollar amount should be included as a line item so users' can clearly see the minting fee that is being incurred and added to their overall IST debt with the mint action they are taking

Description of the Design

• [ ] For new vault creation -> Show calculated minting fee based on user-specific IST mint amount in the vault summary tile e.g. if minting fee 0.05% user opening 1000IST vault incurs 50IST charge which should be shown as -> Minting Fee......0.5% (50 IST)
• [ ] For vault adjustment (+minting more IST action) -> add 'Minting Fee' and show adjustment as a line item between 'Debt' and 'Collateralization Ratio' e.g. if user is minting an additional 1000IST at 0.5% then show as 'Minting Fee (0.05%)................50IST (added to debt)' (@samsiegart this might be a bit clunky so let's discuss if there's a better way to illustrate this line item)

[samsiegart]

In "Adjust Vault", the new debt total already includes the minting fee (see below, minting 100 IST):

Maybe it's best to have an (i) tooltip explaining it's the total of existing debt + newly minted + minting fee. Or put "minting fee" as a separate line below stability fee.

In "Create Vault", maybe we could show a line below "Minting", like "Debt After Minting Fee" or something:

That would make it clearer that it's not charging you IST on the transaction, but rather it's being added to the debt.

[otoole-brendan]

I knew the minting fee was being reflected to the new debt amount - it's more about better communicating to users a) that is the case but more importantly b) what that amount is.

For create vault - yep I think I largely agree but call it 'Debt' or 'Your Debt Balance' and include tool tip explainer:

Depositing........................X stTIA Minting.............................1000IST Your Debt Balance............1100IST (with a tooltip that explains this is sum of minted IST + minting fee)

For Adjust vault where minting more - follow similar so 'Your Debt Balance' line item with tool tip explainer of components then also adding the Minting Fee parameter like you suggest.

Depositing.......................X stTIA Minting.............................500IST Your Debt Balance............1150 (Existing debt (1100) + minting fee (50) + accrued stability fee (X)

Min Collateralization Ratio.......X % Liquidation Ratio......................X % Stability Fee.............................X % Minting Fee..............................X %