Given: Annual dividend = $2.36 per share Cost per share = $52.60
By definition, the rate of return is r = (Vf - Vi)/Vi where Vi = initial investment Vf = final value, including dividends.
Assume that the share price remains unchanged within the year. Then the final value is Vf = 52.60 + 2.36 = $54.96 The initial investment is Vi = $52.60
The rate of return is r = (54.96 - 52.60)/52.60 = 0.04487 = 4.5% approximately