Amgen Inc. (ticker symbol: AMGN) discovers, develops, manufactures, and delivers human therapeutics worldwide. It offers products for the treatment of oncology/hematology, cardiovascular, inflammation, bone health, and neuroscience. On September 5th, 2019 you bought shares of Amgen for $204.25. Company has paid the following dividends: November 14th, 2019 -- $1.45 per share February 13th, 2020 -- $1.60 per share. On March 4th, 2020 you were able to sell the shares for $215.11. How long was your holding period in days? What was your holding period return? What was your APR