The amount of shares that Stam should use to calculate basic earnings per share is 360,000 share.
Basic earnings per share
Shares outstanding at the beginning of the year 200,000 shares
Add additional shares issued 40,000 shares
Total shares outstanding 240,000 shares
(200,000+40,000)
Add 50% stock dividend distributed 120,000 shares
(50% x 240,000)
Basic earning per share 360,000 shares
(240,000+120,000)
Inconclusion the amount of shares that Stam should use to calculate basic earnings per share is 360,000 share.
Learn more here:https://brainly.com/question/15714236