$($Time allowance: $10$ minutes$)$ You are facing a decision of whether to replace an old equipment at your factory. A new equipment will cost $$20$ to purchase it now and the yearly maintenance expenses will be $$10.$ The new equipment has a life of $5$ years at which time it is estimated it can be sold for $$5.$ The new equipment will be depreciated down to zero over $5$ years using straight$-$line depreciation. If the new equipment is purchased, the old equipment can be sold today for $$10.$ However, if the old equipment is not replaced today, it will continue to be depreciated down to zero using straight$-$line method over its remaining $4$ years. The remaining book value today of the old equipment is $$4.$ It is estimated that the old equipment can be sold for $$2$ in one year $($at the end year $1).$ The maintenance cost per year for the old equipment will be $$5.$ Assume that the discount rate is $10\%$ and the tax rate is $20\%.$

In answering the question, round to nearest dollar and do not use the dollar $($$$)$ sign; do not enter decimals. For example if your answer is $-$$$12\mathrm{.}534$ then enter $-13$ ; if answer is $$23\mathrm{.}7459$ then enter $24$ ; if the answer is $-$$$40$ then enter $-40$

The EAC for the replace now decision is