a) total dividends received over the four year period = $1.80 per share x 200 shares = $360
b) total return on investment = (total selling price + total dividends earned - initial investment) / initial investment = ($6,500 + $360 - $6,000) / $6,000 = 14.33%
in $, Ken's total return = $6,500 + $360 - $6,000 = $860