Answer: To calculate the final value of an investment with compound interest, you can use the formula:
A = P(1 + r/n)^(nt)
where:
A = final amount
P = initial investment (principal)
r = annual interest rate (expressed as a decimal)
n = number of times interest is compounded per year
t = number of years the investment is held
In this case, we have:
P = 170000
r = 0.04 (4% expressed as a decimal)
n = 2 (semiannually)
t = 7
So plugging these values into the formula:
A = 170000(1 + 0.04/2)^(2*7)
A = 170000(1.02)^14
A = 170000(1.286816)
A = 217,912.72
The final value of the investment after 7 years is 217,912.72 baht.
Please note that this is a simple interest calculation, and in real world some other factors like taxes, fees, etc should be taken into account.
Explanation: