The collateral is 0.000007 mixUSDC, shares in the mixUSDC vault. At a share price of 1.0008 USDC they are worth 0.000007 USDC, or $0 at USDC’s $1.

A fall of 68.3% in the vault’s share price would take collateralisation from 332.1% to the liquidation line at 105.3%.

0.000002 alUSDb of the debt is set aside for repayment. Line redemptions clear it, and at this share price clearing all of it takes 0.000002 mixUSDC from the collateral, plus 0 mixUSDC for the line’s 0.1% redemption fee.

Set-aside grows block by block between readings, and an event card’s before figure is the reading at the previous card’s block, so a card’s set-aside move includes what built up in between.