Mamba Metals, Limited reported net income of $$732,000$ for its fiscal year ended January $31,2023.$ At the beginning of that fiscal year, $209,000$ shares of common stock were outstanding. On October $31,2022,$ an additional $34,000$ shares were issued. No other changes in common shares outstanding occurred during the year. Also during the year, the company paid the annual dividend on the $21,000$ shares of $5\%,$$$60$ par value preferred stock that were outstanding the entire year.

Required:

a$.$ Calculate basic earnings per share of common stock for the year ended January $31,2023.$

Note: Round your answer to $2$ decimal places.

b$.$ If Mamba Metals, Limited's preferred stock were convertible into common stock, what additional calculation would be required?

$\backslash$table$[[$a$.$ Earnings per share,$],[$b$.$ Additional calculation,$]]$