Answer
Do not change
Work Step by Step
From the previous parts $a$ and $b$, we have two equations
$W1=0.07S+2000$ ...(1)
and $W1=0.05S+2300$ ...(2)
After simplifying these two equations, we have $S= 20,000$
$W1=0.07(20,000)+2000=3400; \\W1=0.05(20,000)+2300=3300$
So, $3400 \gt 3300$
This implies that you get more money if you keep your job.