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发表于 2014-6-1 04:26:25
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arthurm 发表于 2013-5-24 22:26
楼主是想对 固定和浮动做比较。既然是比较, 前提当然是在同一个时间段发生的费用。你算总帐, 那么固定 ...
I have a feeling you are calculating the interest based on the repayments ($20,000 per year) made.
Let's take a step back and re-think what you wrote. The interest should be calculated based on the principal ($260,000).
So, saving in interest for the first year is (5.45%-4.99%) x $260,000 = $1,196.
In second year, assuming the principal owed to bank is $240,000 (if we pay off $20,000 in principal in first year), then savings in interest is 0.46% x $240,000 = $1,104 in second year, and so on after that.
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