dydx USDC depeg [ IMPORTANT ]

[Bitcoiner2023]

Good day,
I don’t understand one thing about dydx.

Everything is shown in USD on dydx.
But is it real USD or is that USDC that have been converted to USD

I need this information urgently as I have to do my tax return soon.
I just don’t know if I can use the USD values ​​on dydx directly to calculate, or if I have to see the USD as USDC first and then have to change it to real USD

So:
What happens if the USDC falls from 1$ to 0.5$ ?

Example 1: ( dydx shows me USD / 1 USD = 2 USDC )
Portfolio Value = 1.000$ so this will be 2.000USDC
Position Size = 3.000$ so this will be 6.000USDC
Fee = 100$ so this will be 200USDC
Unrealized P&L = 6.000$ so this will be 12.000USDC
Realized P&L = 150$ so this will be 300USDC

Example 2: ( dydx shows me USDC as USD value / 1 USD = 1 USDC = 0,5 USD )
Portfolio Value = 1.000$ so this will be 1.000USDC ( 500$ )
Position Size = 3.000$ so this will be 3.000USDC ( 1.500$ )
Fee = 100$ so this will be 100USDC ( 50$ )
Unrealized P&L = 6.000$ so this will be 6.000USDC ( 3.000$ )
Realized P&L = 150$ so this will be 150USDC ( 75$ )