The income of Yu 'ebao is calculated according to compound interest.
The funds of Yu 'ebao are calculated according to compound interest. Transfer to 1 0,000 yuan, assuming that the income of 1.2 yuan is obtained today, the income will be automatically calculated with 1000 1.2 yuan as the principal tomorrow, and so on.
If the income of the day is less than 1 cent, the system may not allocate the income or accumulate it. ?
There are three kinds of displays of Yu 'ebao's earnings yesterday: show the specific amount, guest, don't worry, there is no income for the time being. ?
1. If yesterday's income has been paid, how much is it?
2. If there is no income and the total amount is less than 200, it will show that there is no income for the time being?
If yesterday's income has not been paid, and the total amount is greater than or equal to 200, please remind the guest officer not to worry. ?
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Extended data:
The calculation of compound interest is to calculate the principal and the generated interest together, which is profitable.
The characteristic of compound interest calculation is that the sum of the principal and interest at the end of the previous period is taken as the principal of the next period, and the principal amount of each period is different when calculating. The formula for calculating compound interest is:
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The present value of compound interest refers to the principal that must be invested now in order to reach a certain amount of funds in the future under the condition of calculating compound interest. The so-called compound interest, also called rolling interest in Galilee, refers to the method of making a new round of investment with interest after a deposit or investment is rewarded.
The final value of compound interest refers to the sum of the principal plus interest, after receiving the interest within the agreed period, and then calculating the interest and rolling it to the agreed period. Simply put, it is to deposit a at the beginning, take I as the interest rate, and deposit the sum of principal and interest after n periods. Formula: f = a * (1+I) n.
For example, if the principal is 50,000 yuan, the interest rate or investment return rate is 3%, and the investment period is 30 years, the interest income obtained after 30 years will be calculated according to the compound interest formula, and the sum of principal and interest (final value) will be 50,000× (65,438+0+3%) 30.
Because the inflation rate and interest rate are closely related, just like the two sides of a coin, the formula for calculating the final compound interest value can also be used to calculate the actual value of a specific fund in different years. Just change the interest rate in the formula into the inflation rate.
The headmaster
For example, to raise a pension of 3 million yuan after 30 years, assuming the average annual rate of return is 3%, then the principal that must be invested now is 3000000/( 1+3%) 30.
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