Key figures for Samsung follow $($in $ millions$).$

Cash and equivalents $ $23,069$ Cost of sales $ $126,336$

Accounts receivable, net $30,144$ Revenues $197,691$

Inventories $22,966$ Total assets $302,511$

Retained earnings $218,440$

Required:

Compute common$-$size percents for Samsung using the data given.

What is Samsung's gross margin ratio on sales?

Does Samsung's gross margin ratio outperform or underperform the industry average of $25\%?$