Step 1: The Conceptual Structure
The income statement starts at Revenue — the top line — and moves down through a series of subtractions, each isolating a different type of cost. First, subtracting Cost of Goods Sold (COGS) from Revenue gives Gross Profit, which shows how much the company keeps after covering the direct costs of producing what it sells. Next, subtracting Operating Expenses (SG&A) from Gross Profit gives Operating Income (EBIT) — the profit from the core business alone, before any financing or tax effects. From there, subtracting Interest Expense gives Pre-Tax Income, which reflects what's left for the company's owners and the tax authorities after lenders have been paid. Finally, applying the tax rate gives Net Income — the bottom line that ultimately flows into Retained Earnings on the balance sheet and the top of the cash flow statement.
That's the full logic in one pass: Revenue → Gross Profit → Operating Income (EBIT) → Pre-Tax Income → Net Income, each step stripping out one more category of cost.
Step 2: Gross Profit
Gross Profit = Revenue − COGS
Gross Profit = $500.0m − $300.0m = $200.0m (40.0% gross margin)
The 40.0% gross margin shows how much of each revenue dollar Atlas keeps after covering the direct cost of production — the raw materials and labor that go straight into what it sells. It's the starting point for judging pricing power and cost efficiency, before any overhead is considered.
Step 3: Operating Income (EBIT)
Operating Income (EBIT) = Gross Profit − Operating Expenses
EBIT = $200.0m − $120.0m = $80.0m (16.0% operating margin)
EBIT measures how profitable the core business is from running operations alone, before financing decisions (interest) or taxes enter the picture. Because it excludes capital structure and tax jurisdiction effects, it's the metric most commonly used to compare operating performance across companies.
Step 4: Pre-Tax Income
Pre-Tax Income = EBIT − Interest Expense
Pre-Tax Income = $80.0m − $10.0m = $70.0m
Interest Expense reflects the cost of Atlas's debt financing. Deducting it here means Pre-Tax Income captures the profit actually available to the company's owners and the tax authorities, after lenders have been paid.
Step 5: Net Income
Taxes = Pre-Tax Income × Tax Rate = $70.0m × 0.25 = $17.5m
Net Income = Pre-Tax Income − Taxes = $70.0m − $17.5m = $52.5m
Net Margin = Net Income ÷ Revenue = $52.5m ÷ $500.0m = 10.5%
Net Income is the "bottom line" because it's what's genuinely left for shareholders — via retained earnings or dividends — after suppliers, employees, lenders, and the government have all been paid.
Final Results
- Gross Profit: $200.0m (40.0% margin)
- Operating Income (EBIT): $80.0m (16.0% margin)
- Pre-Tax Income: $70.0m
- Net Income: $52.5m (10.5% net margin)
Net Income is the single number that connects all three financial statements — it flows into the top of the Cash Flow Statement and into Retained Earnings on the Balance Sheet.
Would you like to see how this changes if D&A increases by $10m, or how Net Income flows into the Cash Flow Statement and Balance Sheet?
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