Gross profit expressed as a percentage of net sales, also called gross profit rate.

毛利率是以净销售的百分比表示的毛利，也称为毛利率。

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Based upon past experience, the uncollectible accounts expense is estimated at some percentage of net credit sales.

根据以往经验，坏账损失预估为赊销净值的一定百分比。

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Net profit as percentage of sales.

净利润占销售额的比例。

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As a percentage of net sales, gross profit was 21.3 percent compared to 21.1 percent for the second quarter of 2010.

FORBES: Blue Nile Q2 Sales Up 5.1%, Net Income Up 1.3%

Gross margin expanded 295 basis points year-over-year to 73.3%, resulting from sourcing cost improvements, while operating expenses declined 200 basis points as a percentage of net sales.

FORBES

The company continues to expect fiscal year 2012 net sales percentage growth of high single-digit to low double-digit.

FORBES: Schiff Nutrition Beats Q1 Consensus, Upbeat Outlook