Problem:
Suppose you invest in 200 shares of Johnson and Johnson at $70 per share and 200 shares of yahoo at $20 per share.
Required:
Question: If the price of Johnson and Johnson increases to $80 and the price of Yahoo decreases to $18 per share, what is the return on your portfolio?
a. 9.76%
b. 11.21%
c. 12.21%
d. 8.89%
Note: Please describe comprehensively and provide step by step solution.