Bob Eberhart wants to retire in 10 years. Hes heard that he needs either $1 million or 10 to 12 times his current income of $60,000 saved. He doesnt have either. His goal now is to save, save, save. Saving can double his nest egg if the stock market continues to deliver 7% annually in this decade. He sold his second car and is saving $500 per month. How many shares can he purchase monthly with an NAV of $22.74?