The stock price of Google is $583. You have $10,000 saved in a savings account. The monthly interest rate is 0.6%.

If the initial margin is 50%, what is the minimum additional dollar amount that you have to deposit in your brokerage account?

$5120

What is your initial percentage margin (entered as a decimal number) once you've completed the deposit calculated in part 2?

50%

Two months later, the stock price is $603. Google paid a dividend of $11 per share just before the two months were over. What is your percentage margin (entered as a decimal number)?