Do it in excel: General procedures for making after$-$tax analyses

A company wants to buy a new machine for $$5$ million. The machine can be used

for $7$ years. It will generate constant revenues of $$1\mathrm{.}3$ million per year. The annual

expenses on maintenance etc are $$150,000.$ The salvage value is $$200,000.$ The

depreciation method used is the $150\%$ Declining Balance method. The $($after$-$tax$)$

MARR is $12\%$ and the corporate taxes are $30\%.$

Should this project be accepted or not?