• Holcim average operating margin for 2016 was 1.64%, a 76.9% decline from 2015.
• Holcim average operating margin for 2015 was 7.1%, a 40.29% decline from 2014.
• Holcim average operating margin for 2014 was 11.89%, a 24.63% decline from 2013.

Operating margin can be defined as operating margin measurement of what proportion of a company's revenue is left over after paying for variable costs of production such as wages, raw materials, etc.