First of all, if you want to double the capital, it must be more than five years, and you just raised interest rates at the beginning of the month, so the answer data upstairs is wrong.

The State Council has decided to reduce the applicable personal income tax rate for savings deposit interest from the current 20% to 5% from August 15, and the latest annual interest rate for five-year lump-sum time deposits is 5.22%.

So the annual interest rate is 5.22% and the interest tax is 5%.

95% of the value after 1*( 1+5.22%) is equal to 2.

Then n = LG (2/95%)/LG1.0522 =14.630.

That is 15 years or so.

Ps: Remind the landlord that the consumer price index (cpi) in the key data of inflation is around 5%, which means that the real value of your funds has only increased by 5.22%-5%=0.22%, so now investors have invested all their money in the preservation and appreciation projects such as stocks, real estate, foreign exchange, gold, etc., and depositing in the bank is the most loss-making investment method now.

Nowadays, all kinds of products are rising in price. If you don't properly allocate your investment and wealth management portfolio in Qian Shengqian, it is equivalent to your own money decreasing day by day.

If you want to invest in foreign exchange financing, you can contact QQ30845970.