你可能被中文誤導了 - 省錢

By Harry
at 2017-12-08T12:05
at 2017-12-08T12:05
Table of Contents
問題.
蝦幣回饋15% 等於幾折?
大家答案可能不一樣...
實際上會因為買個東西真的不一樣啦..
推文解答
假設第一個x元 第二個0.15x元(付0元)
(x)/(1.15x)=0.87 最高應該就這樣
(第二次花越多 折扣比例就會越低)
實際例子
==============================
所以題目 蝦幣回饋15%
第一次購物 500
實際付出500
得 衛生紙*1 +75 蝦幣
你未下次購物前 ==> 沒折扣
下個月 二次購物 500-75(前次蝦幣)
實際付出425 ==> 85折
得 衛生紙*1 + 4 蝦幣 (假設沒有其他優惠)
兩次合計 原價1000
實際付出 500+425 折扣==> 92.5折
====================
一次購物500 二次購物300 (正好折抵完)
實際支出500+300-75 約91折(0.90625)
這邊文章只是簡單想給你知道
下次折扣.回饋等等
可能不是你直覺認定的那數字.
================================================================
下方是原本思考過程 (有誤導..)
畢竟是討論,過程當然要留下來(有誤導..)
================================================================
先問簡單點的.來幫助觀念釐清~
題目一
買一送一 == ??%
題目二
二件合購7折 == ??%
題目三
第二件6折 == ??%
==================================
假設以500一箱衛生紙為例...
解一.買一送一
兩件商品 原價1000
實際付出 500+0 5折
解二.兩件合購7折
兩件商品 原價1000
實際付出 (500+500)*0.7 7折
解三.第二件6折
兩件商品 原價1000
實際付出 500+500*0.6 8折
到此應該沒問題~
==================================
進階題
進階一.消費五百送100紅利
(紅利下次消費折抵1比1)
進階二.消費五百送250購物金
(購物金下次消費折抵1比1)
進階三.首購消費五百送五百元回饋金
(回饋金下次消費折抵1比1)
========繼續解題========
繼續拿一箱500元衛生紙
========================
解.進階一 (消費五百送100紅利)
買500
得 衛生紙*1 +100紅利
實際付出 500 ==> 沒折扣
二次購物 500-100(前次紅利)
得 衛生紙*2 +100紅利
實際付出 400 ==> 8折
兩次購物合計 原價1000
實際付出 500+400 ==> 9折
得 衛生紙*2 +100紅利
=====
解.進階二 (消費五百送250購物金)
買500
得 衛生紙*1 +250購物金
實際付出500 ==> 沒折扣
二次購物500-250(前次購物金)
得 衛生紙*1 +250購物金
實際付出250 ==> 5折
兩次購物合計 原價1000
實際付出500+250 ==> 75折
得 衛生紙*2 +250購物金
=====
解.進階三 (首購消費五百送五百元回饋金)
消費500
得 衛生紙*1 +500回饋金
實際付出 500 ==> 沒折扣
二次購物 500-500
實際付出 0 ==> free~
兩物購物合計 原價1000
實際付出500 ==> 5折
得 衛生紙*2 (沒有回饋金了)
==============================
==============================
看完三題進階明白一個觀念了嗎?
無論購物金 回饋金 紅利 福利
只要無法折抵當次消費,當次消費應該是 沒有折扣
沒有二次消費來抵扣,你算是原價購物
==============================
==============================
所以題目 蝦幣回饋15%
第一次購物 500
實際付出500
得 衛生紙*1 +75 蝦幣
你未下次購物前 ==> 沒折扣
下個月 二次購物 500-75(前次蝦幣)
實際付出425 ==> 85折
得 衛生紙*1 + 4 蝦幣 (假設沒有其他優惠)
兩次合計 原價1000
實際付出 500+425 折扣==> 92.5折
====================
有人問剛好花300抵扣完
一次購物500 二次購物300
實際支出500+300-75 約91折(0.90625)
================================
實際上 購物金等大多不能完全折抵,精算下來會更複雜
這邊文章只是簡單想給你知道
下次折扣.回饋等等
可能不是你直覺認定的那數字.
================================
--
Tags:
省錢
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屈臣氏1208折價100折扣碼

By Joe
at 2017-12-08T09:20
at 2017-12-08T09:20
brita濾芯特價!比costco還便宜

By Frederic
at 2017-12-08T00:52
at 2017-12-08T00:52
Happy Go快樂小學堂1208

By Gilbert
at 2017-12-08T00:25
at 2017-12-08T00:25