Retail Finance Calculators
Margin, markup, ROI, and profitability calculators built for retail finance teams and store owners.
Gross Margin Calculator
The cleanest read on how much of every sales dollar you actually keep after paying for the goods. Gross margin drives every downstream financial decision in retail: what to price, what to promote, what to keep on the shelf. This calculator returns the margin percent plus the markup equivalent, cost-as-percent-of-revenue, and the price-to-cost multiplier so operators can translate between the three lenses in one view.
Gross Margin % = ((Revenue − COGS) ÷ Revenue) × 100
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Markup Calculator
Set a selling price from cost or reverse-engineer the markup baked into an existing price. Markup is the buyer’s language of pricing (percent added on top of cost), while margin is the finance language (percent kept from revenue). This calculator returns markup percent alongside profit per unit, the margin equivalent, and the price-to-cost multiplier so pricing decisions get made in the right language across both teams.
Markup % = ((Selling Price − Cost) ÷ Cost) × 100
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GMROI Calculator
The single most honest cross-category profitability metric in retail. GMROI answers one question: for every dollar of inventory you funded, how many dollars of gross profit did you get back? A high gross margin on inventory that never sells produces zero return, which is why GMROI keeps margin and inventory turnover honest against each other. This calculator returns the GMROI ratio alongside gross margin percent, inventory turnover, gross profit and a plain-English performance band so buyers and category managers can read the number in context.
GMROI = Gross Profit ÷ Average Inventory (at cost)
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Sell-Through Rate Calculator
The speed-of-sale metric every buyer, planner and category manager reads before touching pricing or reorder decisions. Sell-through rate measures the percent of received units that actually sold across the measurement window. High sell-through means the buy is working. Low sell-through means the inventory is aging faster than expected and the markdown clock is running. This calculator returns the STR percent alongside remaining units, weekly sell rate, projected weeks to 80 percent and 100 percent sell-through, and a plain-English performance band so operators can act on the number instead of just report it.
Sell-Through Rate % = (Units Sold ÷ Units Received) × 100
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ROI Calculator
Calculate return on investment for any retail project, marketing campaign, or capital purchase.
((Gain − Cost) ÷ Cost) × 100
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Markdown Calculator
The pricing tool every buyer and merchandiser reaches for when inventory is running behind sell-through pace. This calculator returns the markdown amount, markdown percent, final selling price, and (when cost is entered) the resulting gross profit and margin percent. It also flags whether the markdown depth is promotional, seasonal, aggressive or clearance-tier, and generates practical next-step recommendations tied to gross margin, GMROI, sell-through rate and inventory turnover.
Markdown % = ((Original Selling Price − Markdown Price) ÷ Original Selling Price) × 100
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More Retail Finance resources
Guides, benchmarks and downloadable templates that pair with retail finance calculators.