💰 Profit Calculator

A simple and lightweight Node.js utility to calculate business profitability, including Revenue, COGS, Gross Profit, EBIT, EBITDA, Tax, and Net Profit — all in one function.
Perfect for startups, finance dashboards, or anyone analyzing product-level profit margins.

🚀 Installation

npm install net-profit-calculator

const { calculateProfit } = require('net-profit-calculator');

// Example Input
const input = {
  sellingPrice: 1000,    // ₹ per product
  quantity: 100,         // total products sold
  costPerUnit: 350,      // cost to make one product
  adExpense: 15000,
  salary: 20000,
  rent: 10000,
  otherExpense: 5000,
  interest: 1000,
  depreciation: 2000,
  amortization: 1000,
  taxRate: 30            // in %
};

// Calculation
const result = calculateProfit(input);

console.log("📊 Profit Analysis Report:");
console.table(result);

🧮 Example Output
📊 Profit Analysis Report:
┌────────────────────┬─────────────┐
│      (index)       │   Values    │
├────────────────────┼─────────────┤
│      revenue       │   100000    │
│        cogs        │   35000     │
│    grossProfit     │   65000     │
│ operatingExpense   │   50000     │
│        EBIT        │   15000     │
│       EBITDA       │   18000     │
│        tax         │   4200      │
│     netProfit      │   9800      │
│   profitMargin     │   '9.80%'   │
└────────────────────┴─────────────┘

🧠 Formula Reference
Term	Formula	Description
Revenue	sellingPrice × quantity	Total money from sales
COGS	costPerUnit × quantity	Cost of making the products
Gross Profit	Revenue - COGS	Profit before expenses
OPEX	adExpense + salary + rent + otherExpense	Operating costs
EBIT	Gross Profit - OPEX	Earnings before interest & tax
EBITDA	EBIT + depreciation + amortization	Profit before depreciation & amortization
Tax	(EBIT - interest) × (taxRate / 100)	Corporate tax calculation
Net Profit	EBIT - interest - tax	Final profit after all expenses
Profit Margin	(Net Profit / Revenue) × 100	Percentage of revenue retained as profit
⚙️ Features

📈 Calculates complete business profitability chain

💼 Ideal for product, startup, and finance analysis

🧩 Works with Node.js projects easily

🪶 Lightweight and dependency-free

🧮 Easy to customize and extend

🧑‍💻 Author

Hemant Sharma