In June 2003, an investor is convinced that the SUPER BIO share price will be at least $60 on the third Friday of October 2003. To take advantage of this situation, while reducing his risk, he decides to execute the following spread: Purchase of twenty call option contracts October 2003/$60 at $8.25 and sale of twenty option contracts purchase October 2003/$70 at $3.50. Determine the maximum gain he can make and the maximum loss he can incur. (Show the results on a diagram).