點樣計複利息

本利和:
$7300x(1+5.5%/2)^(3.5/0.5)
=$7300x(1+2.75%)^7
=$8826.65
複利息:
$8826.65-$7300
=$1526.65

2007-08-03 22:52:16 補充：
(1)複利息:[$20000x(1 9%/4)^(4x4)]-$20000(2)複利息:[$3000x(1 4%/12)^(12x2)]-$3000

2007-08-03 22:53:28 補充：
更新:(1)複利息:[$20000x(1 9%/4)^(4x4)]-$20000(2)複利息:[$3000x(1 4%/12)^(12x2)]-$3000

2007-08-03 22:54:39 補充：
以上都漏左個加號( 打左show 唔到出來)

7300*(1+2.85%)7次方
7300*(1.0285)7次方
7300*1.217390959
答案=8886.954003