(Holding-period dollar gain and return) Suppose you purchased 10 shares of Diamond Company stock for $28.23 per share on May 1, 2016. On September 1 of the same year, you sold 8 shares of the stock for $30.42. Calculate the holding period dollar gain for the shares you sold, assuming no dividend was distributed, and the holding-period rate of return. Enter a negative number if it is a loss. (Round to the 60 OD . 8 a. The holding-period dollar gain for the shares you sold is $ nearest cent.) . 1