As one aspect of its business, New Lawn Company currently rents a ditchdigging machine for an average of $\$ 48$ per job. A used machine is available for $\$ 995$ but would cost $\$ 498$ to repair. The machine, if purchased, would cost $\$ 800$ a year to maintain and in two years would need a new chain costing $\$ 394$. The used digger has a useful life of four years with no salvage value.

If the company averages 30 jobs a year and has a cost of capital of 10 percent, which alternative is more profitable?