Answer:
-$1,500 more expensive
Step-by-step explanation:
Calculation for How much cheaper or more expensive would it be to use the stainless-steel pump rather than a new brass pump
Using this formula
Cheaper or more expensive=Brass pump value-( Current pump value+Pump reconfigure extra amount spent)
Let plug in the formula
Cheaper or more expensive =$6,000-($7,000+$500)
Cheaper or more expensive =$6,000-$7,500
Cheaper or more expensive =-$1,500 more expensive
Therefore based on the information given the stainless steel pump will be $ 1500 more expensive than the brass pump.