• Zoom Communications average operating margin for 2018-04-30 was 0%, a 0% decline from 2018-07-31.
• Zoom Communications average operating margin for 2018-07-31 was 0%, a 0% decline from 2018-10-31.
• Zoom Communications average operating margin for 2018-10-31 was 0%, a 0% decline from 2019-01-31.

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.