✔ 最佳答案
total 升幅: 420-> 630 from 2002 -> 2006
=> 630-420 = 110美元 over 2006-2002 = 4 years
total 升幅 = 110/420 = 26.19%
每年平均升幅 = 26.19% / 4 = 6.55%
2006-11-10 01:17:16 補充:
Sorry, calcuation errortotal 升幅: 420-> 630 from 2002 -> 2006=> 630-420 = 210美元 over 2006-2002 = 4 yearstotal 4年 升幅 = 210/420 = 50% 每年平均升幅 = 50% / 4 = 12.5%