It would earn more if interest were compounded quarterly but any lender will adjust the quarterly rate so that you get the same!
For example, a 5% annual rate is equivalent to a rate of 4.9089% per quarter. This is one reason that some countries require the publication of Annual Equivalent Rates to enable investors to compare such differences.
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Before she chooses a bank and deposits her money, Mary should shop around first.There are different kinds of interest.At 3.2% . . .If it's simple interest, her money will earn $ 8.80 .If it's compounded quarterly, it earns $ 8.91 in one year.If it's compounded monthly, it earns $ 8.93 .If it's compounded daily, it earns $ 8.94 .Also, by the way, notice that Mary doesn't earn the interest. Her invested money does.
He will get 128.95 interest after tax.
It earns 431.0125 . After 4 years, it has grown to 2,431.01 .
Using the compound interest formula which states A = P (1 + r/n)nt. We get the following result:10000 ( 1 + .095/4)4(4)10000 (1 + 0.02375) 1610000 (1.02375) 1610000 (1.45580)$14558Therefore you earn approximately $4558.00 on a CD yielding a 9.5% interest rate for 4 years.
4% of 2500 = 2500*4/100 = 100 Assuming there is no compounding - The above calculation is appropriate and 100 is the interest earned by Franklin at the end of one year. There are banks that offer quarterly or half yearly compounding wherein, the interest earned in the first quarter would be considered as principal in the second quarter. In that case, the calculation would vary. In the UK the quoted rate must be the annual equivalent rate which takes any compounding into account. So 4 percent annually (as stated in the question), could be 1.98% every six months, or 0.3274% every month. But at the end of one year the compounded interest must be 4%. Other countries will have different regulations.