How to calculate the mortgage interest rate of 6.6?

The annual interest rate of buying a house is 6.6%, which is the latest adjusted benchmark interest rate for loans over five years released by the central bank on February 9 this year. General mortgage is definitely above 5 yuan, so it can be said that the benchmark interest rate of general mortgage is 6.6% per year. As for the floating interest rate you mentioned, for example, the floating interest rate is 10%, and your actual mortgage interest rate is the benchmark interest rate of 6.6% *1+10%) = 7.26%, which is the result of your agreement with the loan bank. Let's talk about monthly interest. It's simple. Monthly interest rate = annual interest rate/12, so when the interest rate is 6.6% in that year, the monthly interest rate = 6.6%/ 12 = 0.55%. Generally speaking, the annual interest rate of 6.6 and the monthly interest rate of 5.5 are omitted by default. For example, if you borrow 100 yuan, and you have to pay interest on 6.6 yuan every year, it will be 0.55 yuan per month.