Suppose you pay a $300 every month for the next 24 months into an investment account, which is invested in Vanguard 500 index fund. Historically the return on S\&P 500 has been, on average, about 1% per month. If this performance persists in the future, how much money would you have in your account at the end of 18 years when you need to pay for your kid' - college? (Assume that you will make the first monthly payment in one month from today)