(Holding-period dollar gain and return) Suppose you purchased 14 shares of Disney stock for $22.35 per share on May 1, 2012. On September 1 of the same year, you sold 10 shares of the stock for $18.42. Calculate the holding-period dollar gain for the shares you sold, assuming no dividend was distributed, and the holding-period rate of return. a. The holding-period dollar gain for the shares you sold is $Enter a negative number if it is a loss. (Round to the nearest cent.) b. The holding-period rate of return is%. (Round to two decimal places)