點解一樣都係2%
但有D公式係乘1.02，有D係乘0.98
例如我禁100*1.02=102
但我禁100*0.98=98
計%點計thx
2014-08-25 10:31 am
回答 (3)
2014-08-26 12:25 am
✔ 最佳答案
100*1.02=100*(1+0.02)=100*(100%+2%)100*0.98=100*(1-0.02)=100*(100%-2%)
知足常樂的意見:
Case 1
A is 2% greater than B ⇔ A = (1 + 2%)B ⇔ A = 1.02B
Case 2
B is 2% less than A ⇔ B = (1 - 2%)A ⇔ B = 0.98A
Case 1 和 Case 2 是不同的。
2014-08-25 4:53 pm
Case 1
A is 2% greater than B ⇔ A = (1 + 2%)B ⇔ A = 1.02B
Case 2
B is 2% less than A ⇔ B = (1 - 2%)A ⇔ B = 0.98A
Case 1 和 Case 2 是不同的。
A is 2% greater than B ⇔ A = (1 + 2%)B ⇔ A = 1.02B
Case 2
B is 2% less than A ⇔ B = (1 - 2%)A ⇔ B = 0.98A
Case 1 和 Case 2 是不同的。
2014-08-25 10:49 am
我諗你嘅意思係：
1.02=1+0.02=100%+2%
0.98=1-0.02=100%-2%
1.02=1+0.02=100%+2%
0.98=1-0.02=100%-2%
收錄日期: 2021-04-15 16:22:12
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20140825000051KK00015