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What is a Profit & Loss Calculator?
Whether you're a small shop owner pricing inventory, a reseller flipping items online, or a student revising for a competitive exam, working out profit or loss percentage by hand is a common but error-prone task. This calculator takes your cost price and selling price and instantly tells you whether you made a profit or a loss, and by how much — useful for pricing decisions, GST invoicing checks, or simply verifying a deal before you commit to it.
Profit & Loss Percentage Formula
Profit/Loss % = (Difference ÷ CP) × 100
A positive difference means profit; a negative one means loss.
Worked Example
Profit case: You bought an item for ₹800 (CP) and sold it for ₹950 (SP). Difference = ₹950 − ₹800 = ₹150. Profit % = (150 ÷ 800) × 100 = 18.75% profit.
Loss case: Now say you bought stock for ₹1,000 but had to sell it at ₹850 during a clearance sale. Difference = ₹850 − ₹1,000 = −₹150. Loss % = (−150 ÷ 1,000) × 100 = −15%, meaning a 15% loss on that item.
How to Use This Calculator
- Enter the Cost Price (CP) — what you originally paid for the item.
- Enter the Selling Price (SP) — what you sold or plan to sell it for.
- Click Calculate to instantly see the profit or loss amount and percentage.
Where This Comes in Handy
- Retailers and kirana store owners use profit percentage to decide markup on goods before restocking.
- Resellers on platforms like OLX, Meesho, or Amazon can quickly check margins after accounting for platform fees.
- It's also a staple topic in bank PO, SSC, and other Indian competitive exams, so students often use it to verify manual calculations.
📅 Last reviewed: July 2026 · Formulas verified against RBI/SEBI/IT Dept guidelines.