Calculate the ROI: The Sun$-$glass Sisters company is considering building a new building. They believe the new building will save them $$50,000$ each year in rent. To build the building, however, they will need to pay $$20,000$ in interest each year and $$50,000$ up front $($one time$)$ in architecture and contractor fees. What is the $10-$year ROI?

Question $4$ options:

$400\%$

$60\%$

$100\%$

$25\%$