Determine the weighted-average number of shares outstanding as of December 31, 2015. The weighted-average number of shares outstanding

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Exercise 16-16 (Part Level Submission)

On January 1, 2015, Wilke Corp. had480,000shares of common stock outstanding. During 2015, it had the following transactions that affected the Common Stock account.

February 1	Issued120,000shares
March 1	Issued a 10% stock dividend
May 1	Acquired100,000shares of treasury stock
June 1	Issued a 3-for-1 stock split
October 1	Reissued60,000shares of treasury stock

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The way i was shown how to do this is:

date whole wtd

J 480000 x1/12 = 40000

etc.....

when making my chart i am fine through 5/1 but then i have to repeat for the stock split? or do i have to redo my chart?