An antibiotic hip stem project has been going for five months now $(5\%$ complete$),$ and $$500,000$ has been spent on it thus far. The original project plan called for an EV of $$450,000$ at five months, but currently the work is valued at $$300,000.$ What is the Schedule Variance $($SV$)$ of this project and is it behind schedule or ahead of schedule?

Group of answer choices

$$200,000$; ahead of schedule

$-$$$150,000$; behind schedule

$$150,000$; ahead of schedule

$$50,000$; ahead of schedule

$$200,000$; behind schedule