ERHC Energy Operating Margin 2010-2017 | ERHE

ERHC Energy operating margin from 2010 to 2017. 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.

ERHC Energy Operating Margin 2010-2017 | ERHE

ERHC Energy operating margin from 2010 to 2017. 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.