et's say you deposited $140,000 in a 529 plan (a tax advantaged college savings plan) hoping to have $420,000 available 12 years later when your first child starts college. However, you didn't invest very well, and 3 years later the account balance dropped to $120,000. Let's look at what you need to do to get the college savings plan back on track. a.What was the original annual rate of return needed to reach your goal when you started the fund 3 years ago?