You own a portfolio that is valued at $12.5 million and which has a beta of 1.42. You would like to create a riskless portfolio by hedging using S&P 500 futures contracts. The contract size is $250 times the index level. How many futures contracts do you need to acquire if the current S&P 500 index is 1420? If you realized you made a mistake for which the beta of your portfolio is only .68, how would your answer change?