A security administrator wants to calculate the ROI of a security design which includes the purchase of new
equipment. The equipment costs $50,000 and it will take 50 hours to install and configure the equipment. The
administrator plans to hire a contractor at a rate of $100/hour to do the installation. Given that the new design
and equipment will allow the company to increase revenue and make an additional $100,000 on the first year,
which of the following is the ROI expressed as a percentage for the first year?

A.
-45 percent

B.
5.5 percent

C.
45 percent

D.
82 percent