Where X stands for the total amount of ***n years (including income and principal), A stands for the amount invested each year (for example, 200 yuan is invested every month, a = 2,400 yuan), B stands for income (for example, annual income 15%, b = 0. 15), and N stands for the power of n (Baidu can't mark it, so it has to be expressed.
For example, the annual income of a fund is 15%, and I want to buy 1 000 yuan per month for 20 years. After 20 years, what is the profit plus principal?
X20 =1000 *12 * [1-(1+0.15) 20]/-0.15 ?1.
Income = 1.23 million-20 *12 *1000 ≈ 990,000 yuan. Calculation formula of fund income 1. Income from external deduction method (commonly used algorithm at present) = principal /( 1+ subscription rate)/net value on the day of subscription * redemption.
For example, the net value of the fund bought at the price of 10000 yuan is 5. 123, and the net value at the time of redemption is 5.42 1 yuan, the subscription rate is 1.5%, and the redemption rate is 0.5%. What is its income?
Revenue =10000/(1+1.5%)/5.123 * 5.421* (1-0.5%)-/kloc.
Subscription fee = subscription amount-net subscription amount
Subscription/subscription share = principal /( 1+ subscription rate)/subscription date net value.
Redemption amount = fund share * redemption date net value *( 1- redemption rate) net subscription amount =10000/(1+1.5%) = 9852.22 yuan.
Subscription fee =10000-9852.22 =147.78 yuan subscribed fund share = principal /( 1+ subscription rate)/net value of fund share subscribed on the subscription day =10000/(1+)
Subscription fee = subscription amount × subscription rate
Net subscription amount = subscription amount-subscription fee
Subscription share = net subscription amount/par value of fund unit