Having $ 200$200 today is equivalent to having what amount in one year?

Suppose the interest rate is 4%, the equivalent of $200 in one year will be:

A=P (1+r/100) ^n

where:

p=principle amount

r=rate

n=time

Hence the amount in 1 year will be:

A=200 (1+4/100) ^1

A=$208

Therefore $200 today is equivalent of $208 in 1 year.