Step 1: Click on the "Repay" tab under the collateral option you deposited into along with the correct expiration.
Step 2: Enter the amount of funds you want to pay back, in this example we will pay it back in full (800 DAI and 800 RR tokens).
Step 3: Click the "Confirm Repay" button. You will return back 800 DAI and 800 RR tokens to receive your 1 wETH collateral back.
Step 4: Metamask will pop up again, confirm the transaction to repay your 800 DAI and return the 800 RR tokens.