Answer
Total averted expenses: ${$5,000}$
Loss: ${$5,000}$
Work Step by Step
Now only 5 people will test positive, the future treatment averted will be $5\times 1,000=5,000$.
With a total cost of ${$10,000}$ from part a, and averted expenses of ${$5,000}$, it will lose ${$5,000-10,000=-5,000}$.
