The compound interest formula is
FV = P(1+i)^n
where
FV = Future Value
P = Principal
i = interest rate per compounding period
n = number of compounding periods.
Here you will need to calculate i by dividing the nominal annual interest rate by the number of compounding periods per year (that is, i = 4%/12).
Also, if the money is invested for 8 years and compounds each month, there will be 8*12 compounding periods.
Just plug the numbers into the formula. You can do it!
$194.25 if interest is compounded annually. A little more if compounded quarterly, monthly, or daily.
635.24
313.37
648.68
283.52
187.32
322.7
161.35
572.56
275.28
610.45
674.43