For commercial loans in 2009, the benchmark interest rate for loans over five years is 5.94%, and the monthly interest rate is 5.94%/12 = 0.495%; If the first suite enjoys a 30% discount, the interest rate is 4. 158% and the monthly interest rate is 4.158%/12 = 0.3465%.

Monthly repayment amount16800015 (180 months):

If calculated at the benchmark interest rate:

[ 168000 * 0.495% * ( 1+0.495%) 180]/[( 1+0.495%) 180- 1] =

If calculated at the preferential interest rate:

[ 168000 * 0.3465% * ( 1+0.3465%) 180]/[( 1+0.3465%) 180- 1

Description: 180 is the power of 180.