.
It is a classic Ordinary Annuity saving plan. The general formula is 
    FV =  ,    (1)
where  FV is the future value of the account;  P is your monthly payment (deposit); r is the monthly percentage yield presented as a decimal; 
n is the number of deposits (= the number of years multiplied by 12, in this case).
Under the given conditions, P = 200;  r = 0.14/12;  n = 12*14 = 168.  So, according to the formula (1), you get at the end of the 14-th year
    FV =
,    (1)
where  FV is the future value of the account;  P is your monthly payment (deposit); r is the monthly percentage yield presented as a decimal; 
n is the number of deposits (= the number of years multiplied by 12, in this case).
Under the given conditions, P = 200;  r = 0.14/12;  n = 12*14 = 168.  So, according to the formula (1), you get at the end of the 14-th year
    FV =  =
 =  = $103187.
Note that you deposit only  12*14*$200 = $33600.  The rest is what the account earns/accumulates in 14 years.
 = $103187.
Note that you deposit only  12*14*$200 = $33600.  The rest is what the account earns/accumulates in 14 years.
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On Ordinary Annuity saving plans,  see the lessons
    - Ordinary Annuity saving plans and geometric progressions
    - Solved problems on Ordinary Annuity saving plans
in this site.