Markup percentage:
(price − cost) ÷ cost × 100

What a markup calculator tells you

A markup calculator tells you how far above your cost a selling price sits. If an item costs you ₹240 and you sell it for ₹300, the markup is 25%. Markup is always measured against cost, never against the selling price.

That makes it a handy check on a price you already charge. Enter what you paid and what the customer pays, and the calculator returns the percentage. The Calcylator form uses rupees for both fields, and the cost must be above zero.

Markup percentage formula

Repricing when your supplier raises costs

This is where a markup calculator earns its keep. Suppose your supplier lifts the cost from ₹240 to ₹264. If you leave the price at ₹300, your markup quietly falls from 25% to 13.64%.

To keep a 25% markup, multiply the new cost by 1.25: ₹264 × 1.25 = ₹330. You can check it by reversing the calculation, because ₹330 ÷ 1.25 gives back ₹264.

A small shop or a home baker can print a table like this once and reuse it for every cost, which is faster than working each price out from scratch.

Where markup is used in real businesses

Cost-plus pricing is common in small trade. A tailor adds a markup to the cloth and thread, a kirana store adds one to the wholesale price of a packet, and a bakery adds one to the cost of ingredients for a cake. Each starts from what the item cost and decides how much to add.

A shop that stocks hundreds of items often sets one standard markup per category, such as 30% on stationery and 15% on staples that customers compare closely. The calculator then works as an audit: enter the cost and shelf price of a sample of items and see whether any sit well below the rate you intended.

It also helps when negotiating. If a wholesaler offers a better cost, you can see at once what markup your existing price would give, and decide whether to pass the saving on or keep it.

Markup versus margin: why 25% is not 20%

Margin divides profit by the selling price, markup divides it by cost. On the ₹300 sale above, the profit of ₹60 is 25% of cost but only 20% of the price. Both are correct, and they describe the same sale.

The trouble starts when someone says they want a 25% margin and you apply a 25% markup. Always ask which one is meant, and say which one you used when you quote results to others.

Common markup mistakes

• Dividing by the selling price instead of the cost, which gives margin.
• Adding the markup percentage to the price in rupees, for example ₹240 + 25.
• Forgetting costs such as packaging, delivery or card fees, so the real markup is lower than it looks.
• Using the old cost after a supplier increase.
• Treating a negative result as an error. It means you are selling below cost.