Business and trade mathematics
Retail and e-commerce calculators
Calculate marketplace order contribution, landed product cost and return-cohort impact from actual seller fees, freight, stock and sales records. No current marketplace fee lookup is assumed.
Marketplace order net contribution
Compare one online order sale with product, shipping, advertising and entered marketplace fees.
Open calculator →Product landed cost per sellable unit
Allocate a shipment purchase, freight and entered import or handling costs over usable units.
Open calculator →Retail returns cost impact
Estimate refunds, recovery value and handling expense for an entered order cohort.
Open calculator →Markup vs margin
Convert cost and desired gross margin into price without confusing markup.
Open calculator →Break even sales
Find units and revenue needed to cover fixed costs.
Open calculator →Inventory carrying cost
Price the annual cash burden of holding a specified inventory balance.
Open calculator →Inventory reorder point and stock coverage
Calculate a supplied reorder threshold, available inventory position and days of stock from matching unit records.
Open calculator →Inventory turnover and days in inventory
Measure cost-based inventory turnover and holding days over your selected accounting period.
Open calculator →Economic order quantity
Estimate the continuous order size balancing entered annual ordering and holding costs under the basic EOQ assumptions.
Open calculator →Inventory shrinkage and stock variance
Compare expected and physically counted stock for one item, with shortages and surpluses valued at the supplied unit cost.
Open calculator →Order fill rate and backorders
Measure order and unit fulfillment separately for a consistent customer-order cohort.
Open calculator →Shipment freight allocation by product line
Allocate a shipment freight bill across product lines using a chosen common basis and reconcile cents.
Open calculator →Receivables aging and past due balances
Group remaining invoice balances by calendar days past their supplied due dates.
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