Income 3500
-Expenses 1000
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2500 / month saved (that's pretty cool actually!)
Nov.2007 - Jun.2008 : 7 months
7x2500 = 17500
-3000 debts
---------------
14500 saved until 1st of June.
How will you get the remaining 35500 that are missing to 50000 ?
(Hope i didn't miscalculate

)