Hidden Arithmetic in promotions

Those businesses look very generous, in fact, in the promotion, they completely do not suffer, on the contrary, because of promotional reasons, they have more sales, more likely to earn than not to promote more money.

"Flower sister Ah, hurriedly to this supermarket here, here yogurt is on sale, buy 5 to send 1." If you don't have time, I'll bring you a bag. See the latest promotional information, Housewife Hou Jie to call the neighborhood flower sister immediately.

Behind the promotion, in the end who is taking advantage of, in fact, it is not so simple. Reporter in the "Shell net" enthusiastic netizens help, find some of the promotion behind the mathematical and economic principles. After rational analysis, those seemingly generous businesses, in fact, did not suffer in the promotion, on the contrary, because of promotions, their sales increase, it is possible to earn more than not to promote more money.

Buy m gift N discount rate

The shell net Netizen "Rachel" is a university finance department undergraduate student, she in "The Nutshell Net" on the post, first will "buy m to give N" as the analysis case.

The so-called "buy M gift n", is the most commonly used in supermarkets a promotional method, the main feature is that consumers buy goods and received goods to maintain homogeneity. For example, buy 5 bags of a brand 125 ml of plain yogurt, received 1 bags of the same brand, the same capacity, the same taste of yogurt.

The discount rate for this promotion method is also best calculated. When the number of goods (i.e. m) purchased by the consumer is the same, the number of items received (ie, n) is more, the higher the discount rate, the greater the consumers "take advantage of". If, conversely, N is the same, the higher the M value, the lower the discount rate, the smaller the consumer "takes advantage of".

In supermarket, the most commonly seen is "buy m send 1" (only consider m not more than 10), the equivalent discount rate between 50 percent to 90 percent. If consumers receive more than 1 of the goods, it is generally necessary to buy twice times the gift of goods. For example, "Buy 5 send 2" or "Buy 7 send 3", in which case the equivalent discount rate is around 70 percent. So in addition to buy 1 to send 1 special cases, generally buy m send n discount rate is more than 70 percent.

In addition to "buy M gift n", consumers in supermarkets will often encounter "bundled sales." "Rachel" thinks, "buy M gift n" is a merchant clearance tail goods, "bundled sales" is the usual trick to push new products.

Take shampoo for example. A brand of compliant shampoo 200ml is 19.5 yuan, the same series 200ml hair conditioner price is 19.5 yuan, if the purchase of two kinds of need 19.5+19.5=39 yuan, but the combination of price as long as 37 yuan. The equivalent discount rate is only 37/39=94.8%, which is 95 percent.

The mystery of xx yuan minus xxx yuan

Every time the festival arrives, the major shopping malls will be wildly promoted. In order to attract customers, merchants will launch a variety of promotional means, of which, "xxx yuan when xxx yuan flower", "full xxx yuan minus xx Yuan" is a more common discount method. However, what is the difference between the two strategies? The shell net "Netizen" The believer of Tesla, remind, in anxious pay money, may want to make clear before buying later.

First, let's take a look at the discount strategies that businesses use. The so-called "xxx when xxx Yuan Hua", such as "44 when 99 Flower", is to spend 44 yuan to buy 99 yuan of shopping coupons, and then in the shopping malls with shopping coupons consumption. For example, to buy a pair of shoes priced at 1091 yuan, you can spend 11 44 yuan to buy 11 99 yuan Shopping coupons, offset 1089 yuan, and then cash out to pay the remaining 2 yuan. At this time, the actual payment of 486 yuan. In terms of the formula: for the commodity price P yuan, set p=99n+m, where m, N is an integer. Consumers are required to pay p1=44n+m yuan.

However, if the commodity price m is close to 99, we actually have a way to save money. For example, you can certainly buy 11 99 yuan of shopping coupons plus 90 yuan to buy a price is 1179 yuan of clothes, then you spent 574 yuan. However, if you buy 12 tickets 99 yuan, then you only need to spend 528 yuan, and after the purchase of clothing coupons will be left with 9 yuan (of course, this 9 yuan will not be for you).

In other words, when the m>44, that is, the commodity price close to 99 of the integer times, to buy more than a shopping voucher strategy more cost-effective. At this point, you need to spend p2=44 (n) dollars.

"Parcel Post Oh,

Pro "easily win the impression score

"Mail Oh, kiss!" In the era of e-commerce, consumers often choose to pay for a particular item because of the famous quote. Logistics costs may not be a burden for most people, but it is the desire of the majority to dispense with the cost of logistics.

The "Tesla believers", through the data, unravel the economic rationale behind the "package". To buy strong customers without express fee is actually to reduce prices, which seems to be more favorable to consumers, but in fact, the package of mail for businesses more favorable.

For example, the courier fee of 10 yuan, full 50 yuan on the package of the strategy to the consumer's feeling is as long as they buy more than 50 yuan, the merchant for their own pay 10 yuan courier fees. But the reality is that originally the net buys all trades to express, but the merchant for the Express company, actually also is the purchasing power strong customer, therefore the courier company also will give the merchant the corresponding preferential, therefore has the larger scale net shop single time express cost will be far less than 10 yuan, for example may be 5 yuan. In this way, businesses to spend less than 50 yuan customers charge 10 dollars, earn 5 yuan, and the consumption of more than 50 of the customer package mail, even if the loss of 5 yuan, the actual oneself may not pay not to earn, but to give customers a favorable impression of 10 yuan, and finally molded a "package of Oh, pro" traditional virtues.