finaid's calculator was used often by me when I wrote this.

來源: Morning3evening4 於 2012-04-01 10:56:31 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (53 bytes)
回答: here is an calculator 由 legallynewbie2 於 2012-04-01 10:53:52

It is very good. I would give +/- 5K as error.

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