compute the weighted average number of common shares used in computing earnings per common share for 2019 on the 2020 comparative income statement

Marin Inc. uses a calendar year for financial reporting. The company is authorized to issue 9,940,000 shares of $12 par common stock At no time has Marin issued any potentially dilutive securities. Listed below is a summary of Marin's common stock activities. 1. 2,090.000 2 250.800 3. Number of common shares issued and outstanding at December 31, 2018 Shares issued as a result of a 12% stock dividend on September 30, 2019 Shares issued for cash on March 31, 2020 Number of common shares issued and outstanding at December 31, 2020 A 2-for-1 stock split of Marin's common stock took place on March 31, 2021 1.940.000 4280.800 4