房屋贷款算法,计算器BA II PLUS

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Assume: House value 300,000
2 T' }4 L$ N2 ~6 q        10% down payment
* U$ d# i( P6 T$ ?' z. v        25 years mortgage (25 * 12 = 300 months)
/ x7 M  y. H3 O: G+ I9 z+ ?6 j* H        rate 5.24
8 u- X0 I" K/ H( P
, }# p0 e+ j7 B1.effective rate 0.43197466
  in Canada it is common to have mortgages that have interest compounded semi-annually(5.24/2), with payments made monthly.
  Z8 R$ |, P6 d   1 pv, 0 pmt, 1.0262 FV, 6 N ----- CPT I/Y = 0.43197466
. O! i5 @3 n* t- Y" N( H2.Adjusted mortgage balance
  300,000 * 10% = 30,000 downpayment
+ ~9 g! q( `+ P) |  300,000-30,000 = 270,000 mortgage requried
  270,000/300,000 = 90% ---- 2% premium % of loan amount (CMHC)
! k  O7 @1 G0 q' H  270,000 * 2% = 5,400
  adjusted mortgage balance: 270,000 + 5,400 = 275,400
8 z, D% f( E6 |- B. M3. PV 275,400, N 300, 0.43197466 I/Y, 0 FV, CPT PMT = $1637.20 monthly payment
' }( U  }! ]+ Z$ {+ X( m. |4. TOTAL INTEREST PAID IN 25 YEAR ABOUT $216,157.48