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房屋贷款算法,计算器BA II PLUS

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发表于 2008-9-25 13:29 | 显示全部楼层 |阅读模式
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Assume: House value 300,000' c' b& Y. {/ D2 w2 @4 L3 ]* s
        10% down payment ) v2 `. q6 [# V
        25 years mortgage (25 * 12 = 300 months)% U" u" p) x* T# S, h6 \% K: i
        rate 5.24. ]/ h6 d) e( ?2 M

, B. [* k# s0 f$ f1.effective rate 0.43197466
) h# K5 N: F0 l. x9 M9 h: q# ~  in Canada it is common to have mortgages that have interest compounded semi-annually(5.24/2), with payments made monthly.
2 F: k0 [2 a; [# q. X( T% F* j   1 pv, 0 pmt, 1.0262 FV, 6 N ----- CPT I/Y = 0.43197466
& R! T! q2 i; h- J' q  ?2 z2.Adjusted mortgage balance. ~. n) r0 w: |
  300,000 * 10% = 30,000 downpayment
  x( V1 \. j( x) r( y5 V! P0 ~- M  300,000-30,000 = 270,000 mortgage requried
5 w* t0 E' w$ y) C  270,000/300,000 = 90% ---- 2% premium % of loan amount (CMHC)
1 U& M, @% ]% x  270,000 * 2% = 5,400/ v' a7 w3 `/ y  J* _0 A
  adjusted mortgage balance: 270,000 + 5,400 = 275,400  D7 Q  _5 k8 d* v$ N+ W
3. PV 275,400, N 300, 0.43197466 I/Y, 0 FV, CPT PMT = $1637.20 monthly payment
5 [& Z: ]  i7 I) b% [4. TOTAL INTEREST PAID IN 25 YEAR ABOUT $216,157.48
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