Dr$.$ Gulakowicz is an orthodontist. She estimates that adding two new chairs will increase fixed costs by

$$153,000,$

including the annual equivalent cost of the capital investment and the salary of one more technician. Each new patient is expected to bring in

$$2,970$ per year in additional$$ revenue, with variable costs estimated at $$960$ per patient. The two new chairs will allow Dr$.$ Gulakowicz to expand her practice by as many as $195$ patients annually. How many patients would have to be added for the new process to break$$ even?

Part $2$

The$$ break$-$even volume is enter your response here

patients. $($Enter your response rounded to the nearest whole$$ number.$)$