Mamba Metals, Limited reported net income of $$760,000$ for Its fiscal year ended January $31,2023.$ At the beginning of that fiscal year, $166,000$ shares of common stock were outstanding. On October $31,2022,$ an additional $49,000$ shares were issued. No other changes In common shares outstanding occurred during the year. Also during the year, the company pald the annual dividend on the $27,000$ shares of $5\%,$$$50$ 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,Diluted earnings per share$]]$