How much was earned from the 1.77 billion KRW collateral mortgage?

(Former) Democratic Party Proportional Representative, (Former) Commissioner of the National Tax Service, (Current) Presidential Chief of Staff
Calculating 3 months of interest on a 1.77 billion KRW collateral mortgage (private loan) that supposedly does not need to be taxed
By the end of October, it will be 3 months since the mortgage was established
This is why the public is mocking the Lee Jae-myung administration