Capital cost rate = capital occupation fee/net financing fee = capital occupation fee/[total financing amount ×( 1- financing rate)].

Mortgage loan, also known as "mortgage loan". Refers to a loan method adopted by banks in some countries, which requires borrowers to provide certain collateral as a guarantee for loans to ensure the repayment of loans at maturity.

Collateral is generally easy to preserve, wear and tear and sell, such as securities, bills, stocks, real estate and so on.