Straight‑line depreciation base = 1045 over 5 years → Depreciation each year = 209.
YearIncremental RevenuesIncremental CostsDepreciationEBITIncome Tax @ 28%Incremental Earnings
00-330-339.24-23.76
1604-155-209240-67.2172.8
2604-155-209240-67.2172.8
3604-155-209240-67.2172.8
4604-155-209240-67.2172.8
5604-155-209240-67.2172.8
Step 1
Compute EBIT each year: Revenues − Costs − Depreciation.
Step 2
Compute tax: −(Tax Rate × EBIT). Here Tax Rate = 28%.
Step 3
Incremental Earnings = EBIT + Tax.