Nano-Motors Corp. Has stock outstanding which sells for 10$ per share. Macro-Motors, Inc. shares cost $50 each. Neither sotck pays dividends at present.

a. An investor buys 100 shares of Nano-Motors. A year later, the stock sells for $15. Calculate the total return in dollar terms and in percentage terms.

b. Another investor buys 100 shares of Macro-Motors stock. A year later, the stock has risen to %56. Calculate the total reurn in dollar terms and in percentage terms.

c. Why is it difficult to say which investor had a better year?