$($holdining$-$period dollar gain and return$)$ suppose you purchased $15$ sharesof diamond company stock for $$24\mathrm{.}64$ per share on May $1,2016.$ On September $1$ of the same year, you sold $15$ shares of the stock for $$20\mathrm{.}99.$ calculate the holding Dollar gain for shares was sold, assuming no dividend what's distributed comment in the holding period rate of return.