Net Profit Margin
The share of revenue that becomes bottom-line profit after every cost, including interest and taxes.
What it is
Net profit margin measures how many cents of every revenue dollar a company keeps as final profit after all expenses are paid, including cost of goods, operating costs, interest, taxes, and one-time items. It is the most complete margin because it reflects the entire income statement down to net income. It is often simply called net margin or the bottom line.
Why it matters
Net margin tells you the overall profitability that ultimately accrues to shareholders, and it ties directly into returns measures like return on equity. Because it includes interest, taxes, and unusual items, it can be distorted by one-time gains or losses, tax changes, or heavy debt, so a single year can mislead. Comparing several years and checking against operating margin helps reveal whether the bottom line reflects the real business or accounting noise.
How it's calculated
Divide net income (the final profit after all expenses, interest, and taxes) by revenue, expressed as a percentage.
How Quintarthai uses it
Net margin is featured in the Summary Key-metrics grid and in the profitability ratios on a company's deep-analysis page, and is a filterable metric in the Stock Screener.