• Smiths Group average gross margin for 2016-01-31 was 0%, a 0% decline from 2016-07-31.
• Smiths Group average gross margin for 2016-07-31 was 0%, a 0% decline from 2017-07-31.
• Smiths Group average gross margin for 2017-07-31 was 0%, a 0% decline from 2018-01-31.

Gross margin can be defined as a company's total sales revenue minus its cost of goods sold, divided by the total sales revenue, expressed as a percentage.