Index borscht. A systematic approach to assessing, comparing, determining the price / quality ratio
The main purpose of the BI borscht index (borsch index) is to form an unbiased, comprehensive system for the assessment and comparison of borscht in different places and institutions.
In addition, the method presented below is a universal way to conduct a comprehensive assessment of not only borsch, but also any other product, equipment, product, work and service, and the “fair price” methodology presented at the end will provide another tool for checking the prices you set for your product. or service .
The BI index includes an integral assessment of borscht, which is expressed in points, as well as the cost of borscht.
To determine the BI borsch index at the first stage, it is necessary to carry out an integral assessment of borsch.
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The integral assessment IA (integral assessment) is used for a comprehensive assessment of the taste and visual qualities of borscht.
The result of the integral assessment will be the assignment of a certain number of points to a borsch (a maximum of 500 points is possible). The greater the number of points scored borscht, so it is better for the totality of parameters.
1. Select the parameters of the assessment of borscht
I defined 5 parameters with which the borscht will be assessed:
These parameters include the following characteristics:
2. Distribute the proportion of 100% between the selected parameters of borscht
Assign a fraction of 100% for each parameter. The greater the value given to the parameter, the more influence it has on the final result and the rating of borscht.
3. Enter the scale for assessing each of the parameters.
Estimation of the parameters of borscht will be done on a 4-point scale.
This scale allows you to make a larger gap between the evaluation of bad and excellent borscht.
4. We count the number of points of the integral evaluation of borscht.
It is necessary to calculate the final result of the integral evaluation.
To do this, multiply the share of each parameter by the resulting estimate, then add the resulting values.
For example, the result for the borscht of one of the restaurants in Kirov is given.
Borscht received a final result of 330 points out of 500. The level of "normal" borscht.
5. Assign rating to borsch
Depending on the received points of the integral assessment, the rating is assigned to the soup.
Borscht rating on the basis of integrated assessment
At the second stage, knowing the integral estimation of borsch, we determine the borsch index.
6. Consider the borscht index
BI - borsch index (borsch index) is considered as the ratio of the cost of borsch to its integral assessment with inflation.
The mathematical meaning of the borscht index is the value in rubles of 1 point of the integral estimate adjusted for inflation.
You can also say that the borscht index is a digitized price / quality ratio.
BI = Price / (IA Ă— Infl)
where BI is the borscht index;
Price - price of borsch, rub .;
IA - (integral assessment) the number of points received by the borscht on the basis of the integrated assessment;
Infl - (inflation rate), the official inflation rate of the current year, referred to December 2018.
The inflation rate in relation to 2018 is fixed for one year and is considered as follows:
1. Data is taken from the website of the Central Bank of the Russian Federation in the section Statistics / Inflation in the consumer market www.cbr.ru/statistics/macro_sub
2. Throughout 2019, Infl is 1.
The whole 2020 Infl will be equal to the ratio of inflation in December 2019 to December 2018.
The whole 2021 Infl will be equal to the ratio of inflation in December 2020 to December 2019, multiplied by Infl 2020.
For example, the size of inflation Infl during 2023 will be equal to:
Infl 2023 = Infl 2022 Ă— Infl 2021 Ă— Infl 2020,
where Infl 2022 is the ratio of December 2021 inflation to December 2020,
Infl 2021 - the ratio of inflation in December 2020 to December 2019,
Infl 2020 - the ratio of inflation in December 2019 to December 2018
For example, if these values ​​are 4.5%, 3.9%, 5.7%, respectively, we get the correction factor
Infl 2023 = 1.045 Ă— 1.039 Ă— 1.057 = 1.148
Then, for a borscht, which will be assessed in 2023, at its cost, for example, 300 rubles, the final integral estimate, say, 330 points and Infl = 1,148, the BI index of borscht will be equal to:
BI = Price / (IA Ă— Infl)
BI = 300 / (330 Ă— 1,148) = 0.792
For all assessments made in 2019, Infl = 1, so if the soup, for example, cost 300 rubles, and its integral score was 330 points, we get:
BI = Price / (IA Ă— Infl)
BI = 300 / (330 Ă— 1) = 0.909
In this example, the mathematical meaning of the index of borscht is that the cost of 1 point of the integrated assessment is 0.909 rubles.
The smaller the index of borscht BI, the cheaper it is worth one point of the integral evaluation. That is, with the same rating of borscht, it is more profitable to order it in the place where the BI indicator is lower.
The graphs below show how the BI index of borsch index changes depending on the cost of borsch for each rating.
The majority of borscht that I tried in 2019 fell within the price range of 250 - 370 rubles. Therefore, it can be observed that an adequate relative to the “price / quality” borscht with the most demanded “divine”, “excellent” and “good” ratings can have BI is lower than one and optimally lie in the range of 0.5 - 0.9.
Then the border with the BI borscht index of 0.5 - 0.9 can be called the optimum, and the average value of this range 0.7 - the “golden section of borscht”.
7. What is the fair price of borscht?
Using the borscht index, one can estimate what the “fair” price for a plate of borscht should be.
If we give an estimate of the fair value of the “golden section of borscht” (when the index of borscht is BI = 0.7), we can say that for this value BI will be the fair price per plate.
Since the range of BI borscht indices from 0.5 to 0.9 can be called the optimum, we assume that it is in it that the fair price range lies.
These figures show the cost relative to the prices on the market in 2019, so I use the terminology “fair” price.
# SergeyDubovik
In addition, the method presented below is a universal way to conduct a comprehensive assessment of not only borsch, but also any other product, equipment, product, work and service, and the “fair price” methodology presented at the end will provide another tool for checking the prices you set for your product. or service .
The BI index includes an integral assessment of borscht, which is expressed in points, as well as the cost of borscht.
Stage one. Integral evaluation
To determine the BI borsch index at the first stage, it is necessary to carry out an integral assessment of borsch.
')
The integral assessment IA (integral assessment) is used for a comprehensive assessment of the taste and visual qualities of borscht.
The result of the integral assessment will be the assignment of a certain number of points to a borsch (a maximum of 500 points is possible). The greater the number of points scored borscht, so it is better for the totality of parameters.
1. Select the parameters of the assessment of borscht
I defined 5 parameters with which the borscht will be assessed:
- The taste and smell of borscht without sour cream;
- Appearance, consistency;
- The taste and smell of borscht with sour cream;
- Innings;
- Subjective addition.
These parameters include the following characteristics:
2. Distribute the proportion of 100% between the selected parameters of borscht
Assign a fraction of 100% for each parameter. The greater the value given to the parameter, the more influence it has on the final result and the rating of borscht.
- 50% - the taste and smell of borscht without sour cream;
- 25% - appearance, texture;
- 10% - the taste and smell of borscht with sour cream;
- 10% - submission;
- 5% is a subjective supplement.
3. Enter the scale for assessing each of the parameters.
Estimation of the parameters of borscht will be done on a 4-point scale.
This scale allows you to make a larger gap between the evaluation of bad and excellent borscht.
4. We count the number of points of the integral evaluation of borscht.
It is necessary to calculate the final result of the integral evaluation.
To do this, multiply the share of each parameter by the resulting estimate, then add the resulting values.
For example, the result for the borscht of one of the restaurants in Kirov is given.
Borscht received a final result of 330 points out of 500. The level of "normal" borscht.
5. Assign rating to borsch
Depending on the received points of the integral assessment, the rating is assigned to the soup.
Borscht rating on the basis of integrated assessment
Stage Two. Borscht index
At the second stage, knowing the integral estimation of borsch, we determine the borsch index.
6. Consider the borscht index
BI - borsch index (borsch index) is considered as the ratio of the cost of borsch to its integral assessment with inflation.
The mathematical meaning of the borscht index is the value in rubles of 1 point of the integral estimate adjusted for inflation.
You can also say that the borscht index is a digitized price / quality ratio.
BI = Price / (IA Ă— Infl)
where BI is the borscht index;
Price - price of borsch, rub .;
IA - (integral assessment) the number of points received by the borscht on the basis of the integrated assessment;
Infl - (inflation rate), the official inflation rate of the current year, referred to December 2018.
The inflation rate in relation to 2018 is fixed for one year and is considered as follows:
1. Data is taken from the website of the Central Bank of the Russian Federation in the section Statistics / Inflation in the consumer market www.cbr.ru/statistics/macro_sub
2. Throughout 2019, Infl is 1.
The whole 2020 Infl will be equal to the ratio of inflation in December 2019 to December 2018.
The whole 2021 Infl will be equal to the ratio of inflation in December 2020 to December 2019, multiplied by Infl 2020.
For example, the size of inflation Infl during 2023 will be equal to:
Infl 2023 = Infl 2022 Ă— Infl 2021 Ă— Infl 2020,
where Infl 2022 is the ratio of December 2021 inflation to December 2020,
Infl 2021 - the ratio of inflation in December 2020 to December 2019,
Infl 2020 - the ratio of inflation in December 2019 to December 2018
For example, if these values ​​are 4.5%, 3.9%, 5.7%, respectively, we get the correction factor
Infl 2023 = 1.045 Ă— 1.039 Ă— 1.057 = 1.148
Then, for a borscht, which will be assessed in 2023, at its cost, for example, 300 rubles, the final integral estimate, say, 330 points and Infl = 1,148, the BI index of borscht will be equal to:
BI = Price / (IA Ă— Infl)
BI = 300 / (330 Ă— 1,148) = 0.792
For all assessments made in 2019, Infl = 1, so if the soup, for example, cost 300 rubles, and its integral score was 330 points, we get:
BI = Price / (IA Ă— Infl)
BI = 300 / (330 Ă— 1) = 0.909
In this example, the mathematical meaning of the index of borscht is that the cost of 1 point of the integrated assessment is 0.909 rubles.
The smaller the index of borscht BI, the cheaper it is worth one point of the integral evaluation. That is, with the same rating of borscht, it is more profitable to order it in the place where the BI indicator is lower.
The graphs below show how the BI index of borsch index changes depending on the cost of borsch for each rating.
The majority of borscht that I tried in 2019 fell within the price range of 250 - 370 rubles. Therefore, it can be observed that an adequate relative to the “price / quality” borscht with the most demanded “divine”, “excellent” and “good” ratings can have BI is lower than one and optimally lie in the range of 0.5 - 0.9.
Then the border with the BI borscht index of 0.5 - 0.9 can be called the optimum, and the average value of this range 0.7 - the “golden section of borscht”.
Addition
7. What is the fair price of borscht?
Using the borscht index, one can estimate what the “fair” price for a plate of borscht should be.
If we give an estimate of the fair value of the “golden section of borscht” (when the index of borscht is BI = 0.7), we can say that for this value BI will be the fair price per plate.
Since the range of BI borscht indices from 0.5 to 0.9 can be called the optimum, we assume that it is in it that the fair price range lies.
These figures show the cost relative to the prices on the market in 2019, so I use the terminology “fair” price.
# SergeyDubovik
Source: https://habr.com/ru/post/458836/
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