Suppose you purchase 1,400 shares of stock at $62 per share with an initial cash investment of $43,400. The call money rate is 5 percent and you are charged a 1.5 percent premium over this rate. Ignore dividends.

a. Calculate your return on investment one year later if the share price is $70. Suppose instead you had purchased $43,400 of stock with no margin. What would your rate of return have been now? (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.)

b. Calculate your return on investment one year later if the share price is $62. Suppose instead you had purchased $43,400 of stock with no margin. What would your rate of return have been now? (A negative value should be indicated by a minus sign. Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.)

c. Calculate your return on investment one year later if the share price is $46. Suppose instead you had purchased $43,400 of stock with no margin. What would your rate of return have been now?