Estimate the Contribution of a Single Company in IMPLAN Pro

Hello,

I am conducting a Contribution Analysis for the El Paso Electric Company for the El Paso and Las Cruces study area. El Paso Electric is the only electric generation, transmission, and distribution company within the study area.

Is it necessary to calculate the reciprocal of the 'Type Sam Multiplier' and then multiply the reciprocal of the Multiplier by El Paso Electric's Total Output if El Paso Electric is the only company within the electric generation, transmission, and distribution industry in the study area? (http://oldsupport.implan.com/index.php?option=com_content&view=category&id=148)

If this step is necessary, why?

Thanks.