Business Calculator Suite

Price it. Stock it.
Reorder on time.

Four calculators for jewelry retailers. Set retail prices, check your margins, and plan reorders from your own numbers. Results update as you type.

  • Margin and markup
  • Market pricing
  • Reorder timing
  • Order size

Margin & markup

Enter what a piece costs you, then choose a markup or a target margin. Test any shelf price to see what it earns.

Your cost

$

What you pay per piece.

$

Freight cost divided by pieces received.

Your price

%

Profit as a percentage of your cost. 100% doubles your cost.

$

Shows what this price earns instead.

Retail price

Get a starting price from what similar pieces sell for, what your customers usually pay, and the lowest markup you will accept.

Your cost

$

Wholesale price plus shipping per piece.

Your market

$
$
$

A typical selling price for a similar piece in your store.

Your rules

%

Stock runway

See how long your stock lasts at your current sales pace, and when to place the next order so it arrives before you run out.

Sales and stock

units

Average of the last 4 to 8 weeks.

units

Your supplier

days

Days from placing an order to having it on your shelf, including shipping and receiving.

%

Extra stock for slow shipments or a busy week.

weeks

How many weeks of sales each order covers.

Order size

Find the order size with the lowest yearly cost of placing orders and holding stock, while meeting your supplier's minimum.

The item

$
units
units

Your costs

$

Shipping, fees, and the time it takes to order and receive.

$

Space, insurance, and the cost of cash sitting in stock.

How the order size calculator works

What it tells you

Small, frequent orders cost more in shipping and admin. Large, rare orders cost more to store and tie up cash. The economic order quantity (EOQ) is the size where those two costs balance. If your supplier's minimum is higher, the minimum sets the order.

Tips for jewelry retailers

  • The total cost curve is flat near its lowest point, so ordering 10 to 20% more or less than the suggestion changes yearly cost very little.
  • Ask about price breaks. A lower unit cost at a larger quantity can outweigh the extra holding cost.
  • Use this for steady sellers. Trend pieces and one-season styles are better bought to a sell-through plan.

The formulas

Yearly demand (D)
Weekly sales × 52
Holding cost per unit per year (H)
Storage × 12, or 25% of unit cost
Order cost (S)
Cost to place one order
Economic order quantity
√(2 × D × S ÷ H)
Order size
The larger of EOQ and the supplier minimum

Worked example

A chain costs $10.00 per unit, you sell 50 a week, each order costs $50 to place, and the supplier minimum is 100.

  1. Yearly demand: 50 × 52 = 2,600.
  2. Holding cost: 25% of $10.00 = $2.50 per unit per year.
  3. EOQ: √(2 × 2,600 × $50 ÷ $2.50) = 323 units.
  4. That clears the minimum of 100, so order 323, about every 6.5 weeks.

Put the numbers to work

Over 10,000 wholesale styles, with free U.S. shipping on orders over $300.

These calculators give planning estimates from the numbers you enter. Check results against your own sales history and supplier terms before you set prices or place orders.