A new engineer at a sand and gravel operation is considering two

mutually exclusive alternatives for a small dredging system. The

first option from the Diggemup Corporation would cost.

$$-121,569,$ have a salvage value of $$13,537,$ and net $$29,360$ per

year in net annual profits. The second option from the Pushmoore

Mudd Group would cost $$-186,166,$ have a salvage value of

$$20,080,$ and net $$34,963$ per year in net annual profits. The net

profit is listed after operating and maintenance costs. Due to

rough service conditions, both systems would be expected to

have a service life of only $5$ years. The corporate minimum rate of

return for expenditures is $15\%.$

Determine the incremental NPV between these two alternatives.

Use the standard convention of considering the highest capital

project first use the correct sign in your final answer.