Answer: $625,000
Step-by-step explanation:
The number of shares to use will be the Weighted average of the number of common shares in the company as at December 2018.
5% stock had been issued so common stock increases to;
= 600,000 * ( 1 + 5%)
= 630,000 shares
The treasury stock is to be deducted from the amount above and was only reacquired on Sept. 30 so the weighted average is;
= 20,000 * 3/12 months
= 5,000 shares
Number of shares = 630,000 - 5,000 = $625,000