A patient asks why their compounded preparation costs more than the chemist down the road. You need to explain — and check — your pricing before the conversation goes anywhere.
Markup % = (Profit ÷ Cost) × 100
Margin % = (Profit ÷ Sell) × 100
Example: Cost $8.50, Sell $14.95 → Profit $6.45Markup = 75.9% · Margin = 43.1%
Margin is always lower than markup for the same product.
1 What this calculator does
Calculates retail price from cost and markup percentage, gross margin percentage from selling price and cost, and shows the relationship between markup (on cost) and margin (on selling price). Covers both OTC and dispensed product pricing.
2 Formula & professional reasoning
Retail price = Cost × (1 + Markup%/100)
Gross margin% = (Selling price − Cost) ÷ Selling price × 100
Markup% = (Selling price − Cost) ÷ Cost × 100
Markup and margin are frequently confused. Markup is calculated on the cost (what you pay); margin is calculated on the selling price (what the customer pays). A 25% markup produces an 80% sell/cost ratio, which is a 20% gross margin — not 25%. Understanding both is essential for sustainable pharmacy pricing, as wages, rent and professional services must be funded from the gross margin, not the markup percentage.
3 Worked examples
⚠️ Illustrative example only — not clinical or professional instruction.
Retail = $8.50 × 1.35Markup: (45−22) ÷ 22 × 100 = 104.5% · Margin: (45−22) ÷ 45 × 100 = 51.1%Retail = Cost ÷ (1 − Margin%) = 15 ÷ 0.604 Sanity check
5 Common errors
| Error | Cause | Consequence | Fix |
|---|---|---|---|
| Confusing markup% with margin% | Using the terms interchangeably | Retail price too low — margin appears healthy but profit is not | Markup is on COST. Margin is on SELLING PRICE. For a sustainable price, calculate required margin first then derive selling price. |
| Not including GST where applicable | Forgetting GST on non-prescription items | GST shortfall on tax return | Most pharmacy OTC products attract GST. PBS-listed medicines are GST-exempt. Apply 10% GST on top of retail price for applicable products. |
| Setting price below cost + overhead | Competing on price without costing | Selling at a loss | Calculate full cost: product cost + proportion of hourly pharmacist time + packaging + quality assurance. Never price below total cost. |
| Not accounting for returns and wastage | Pricing based on 100% sell-through | Effective margin lower than calculated | For perishable or slow-moving products, build a wastage allowance into the markup percentage |
6 Reference & regulatory links
7 Professional workflow
Common tools used alongside this one: