Consider a three$-$year project with the following information: initial fixed asset investment $=$$$347,600$; straight$-$line depreciation to zero over the three$-$year life; zero salvage value; price per unit $=$$$49\mathrm{.}99$; variable costs per unit $=$$$30\mathrm{.}82$; fixed costs per year $=$$$187,000$; quantity sold per year $=65,500$ units; tax rate $=35$ percent. How sensitive is OCF to an increase of one unit in the quantity sold?

$$12\mathrm{.}46$

$$9\mathrm{.}08$

$$11\mathrm{.}67$

$$13\mathrm{.}40$

$$8\mathrm{.}67$