TGI index: "target group index", which can reflect the strength of the target group in a specific research scope (such as geographical area, demographic field, media audience, product consumers). The calculation method is: TGI index = [proportion of groups with a certain characteristic in the target group/proportion of groups with the same characteristic in the whole] * standard number 100.

For example, among the people aged 15-24, 8.9% have taken Starbucks orally in the past year, while in the whole population, the proportion of taking Starbucks orally is 6.6%, so the TGI index of Starbucks among the people aged 15-24 is 134.9, indicating that Starbucks is mainly located in. The larger the amount, the higher the compliance of the target group.

Extended data:

Compound interest means that the principal is deposited in the bank at a certain interest rate, and the interest at maturity is included in the principal and continues to be deposited in the bank, and the principal and interest are increasing. If the principal is, the annual interest rate is, and the money that can be withdrawn from the bank after the year is. Generally, the annual interest rate will not exceed 15%, but the index period, that is, the number of years of deposit in the bank, has increased rapidly. When it is large enough, the sum of principal and interest will reach an extremely large value.

Manhattan, new york, was bought by early settlers from Indians with $200 worth of jewelry. If you deposit $200 in the bank, the principal and interest will be higher than all the properties in Manhattan now. If you deposit 1000 yuan in the bank now with an annual interest rate of 5% and calculate compound interest, you can get RMB from the bank in 200 years.

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