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E-commerce Unit Economics Workbook
Reconcile order revenue, fees, delivery, returns and acquisition costs before comparing channels or assigning value to repeat purchases.
Reconcile order revenue, fees, delivery, returns and acquisition costs before comparing channels or assigning value to repeat purchases.
Start with the question you need to answer, then choose the tool or worked example that uses the same cost boundary and time period. The guides explain the assumptions behind each calculation. All sample amounts are hypothetical; replace them with your own records before making a plan.
Calculators
Run your own inputs through the documented models.
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Calculator
Fee-Inclusive Price Calculator
Solve for an order price after fixed and percentage fees, then round up to cents and show the contribution…
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Calculator
Shipping Cost Calculator
Add a carrier quote, packaging and handling for one order, then compare that total with the shipping amount…
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Calculator
Order Contribution Calculator
Reconcile order revenue with product, fulfillment, payment, acquisition and return costs to see contribution…
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Calculator
Acquisition Payback Calculator
Estimate retained orders needed to recover acquisition cost and a constant-order-rate payback period,…
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Calculator
Promotion Contribution Lift Calculator
Compare the contribution from a discounted campaign with a no-promotion baseline and calculate the volume…
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Calculator
Coupon Campaign Incrementality Calculator
Separate genuinely additional coupon orders from customers who would have bought anyway, then calculate the…
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Calculator
Returned Inventory Recovery Calculator
Calculate future net recovery from a batch of returned goods after handling, reconditioning and disposal,…
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Calculator
Channel Migration Contribution Calculator
Test whether a channel move covers lost order volume and transition spending after comparing per-order…
Fees Shipping
Choose a specific decision or comparison.
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Guide
Percentage Fees: Identify the Charged Amount
Find the amount a percentage fee actually applies to, then reconcile product revenue, shipping charges, and…
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Guide
Fixed Transaction Fees and Small Orders
Calculate how a fixed payment charge changes the economics of small orders, and test consolidation without…
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Comparison
Net Payout vs Profit: Reconcile Both
Separate platform deposits from business profit with a payment reconciliation, an order contribution…
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Guide
Build a Price That Covers Percentage Fees
Solve backward from cost and a desired contribution amount when fees depend on price, with a worked check…
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Guide
Shipping Charge vs Shipping Cost
Measure shipping recovery after postage, packing, labor, and fees, and compare delivery policies without…
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Guide
Dimensional Weight in Shipping Price Models
Compare package volume with actual weight, then connect billable weight to a quoted shipping cost without…
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Guide
Set a Free Shipping Threshold from Contribution
Test a delivery threshold using incremental basket contribution, existing qualifying orders, and lost shipping…
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Guide
Calculate the Cost of Split Shipments
Measure the second parcel, extra handling, and payment effects of splitting an order, then compare shipping…
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Guide
Budget for Return Shipping by Order Cohort
Estimate return shipping and inspection costs from explicit return probabilities, and keep the reserve…
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Comparison
In-House vs Outsourced Fulfillment Costs
Compare internal and outsourced fulfillment with fixed costs, order-level charges, capacity limits, and a…
Unit Economics
Choose a specific decision or comparison.
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Guide
Customer Acquisition Cost: Define the Cohort
Calculate acquisition cost with a clear customer denominator, distinguish paid from blended CAC, and connect…
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Comparison
ROAS vs Profit: What Revenue Leaves Out
Translate return on ad spend into contribution after advertising and see why campaigns with higher ROAS can…
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Guide
Allowable Acquisition Cost from Contribution
Set an acquisition spending limit from observed customer contribution, required overhead coverage, and a…
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Guide
Repeat Purchase Cohort Economics
Measure repeat-order contribution per original customer, distinguish observed retention from forecasts, and…
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Guide
Return-Adjusted Order Contribution
Calculate expected contribution across kept and returned orders, including refunds, recoverable inventory,…
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Comparison
Average Order Value vs Units per Order
Separate order value, unit count, and product mix so a larger basket is judged by contribution rather than…
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Comparison
Marketplace vs Own Store: Unit Economics
Compare marketplace and direct-store contribution with matching products, acquisition costs, fulfillment,…
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Guide
Subscription Churn and Contribution
Build a finite subscription cohort forecast that separates subscriber losses, recurring contribution,…
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Guide
Inventory Sell-Through and Cash Recovery
Track units sold, inventory still on hand, and purchase cash recovery without treating unsold stock as…
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Guide
Channel Attribution and Profit Reconciliation
Allocate order credit without duplicating revenue, then distinguish reported channel contribution from…
Promotion Decisions
Choose a specific decision or comparison.
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Guide
Promotion Incrementality: Compare with a Baseline
Compare a promotion with a stated no-offer baseline, including discounts on natural purchases, additional…
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Guide
Budget Coupon Redemptions Before a Campaign
Estimate coupon exposure at different redemption levels, separate forgone revenue from cash payments, and…
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Guide
Discount Cannibalization: Price the Lost Full Sales
Measure how concessions on purchases that would happen anyway can offset contribution from genuinely…
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Guide
Estimate the Cost of Loyalty Points
Convert issued loyalty points into expected reward fulfillment costs while keeping face value, redemption…
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Guide
Referral Rewards: Count Both Sides of the Offer
Budget referrer and new-customer rewards together, verify qualifying orders, and compare referred contribution…
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Comparison
Affiliate Commission vs Fixed Sponsorship
Compare a hypothetical sales commission with a fixed sponsorship fee using the same order economics, then test…
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Comparison
Cashback vs Instant Discount: Cost and Timing
Compare an immediate price reduction with a later cashback payment, including claim assumptions,…
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Guide
Free Trials: Conversion and Contribution
Calculate the paid conversion needed to cover all trial users, acquisition, and setup within a finite…
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Comparison
Introductory vs Renewal Pricing Economics
Follow an introductory subscription price into later paid periods and compare finite cohort contribution…
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Comparison
Subscription Pauses vs Cancellations
Compare a temporary pause with cancellation using explicit service costs, return probabilities,…
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Guide
Measure a Customer Reactivation Campaign
Evaluate dormant-customer offers against natural return purchases, with clear cohort eligibility,…
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Comparison
Upsell vs Cross-Sell: Incremental Contribution
Compare an upgrade with an additional item using the contribution change, offer acceptance, fulfillment…
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Guide
Price an Abandoned-Cart Recovery Offer
Compare a cart-recovery discount with natural checkout returns, including basket contribution, offer timing,…
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Comparison
Restock or Liquidate a Returned Product
Compare future net recovery from a returned item with immediate liquidation, including processing, selling…
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Comparison
Exchange vs Refund: Follow the Incremental Cash
Compare an agreed exchange with a refund using replacement costs, retained payment, return handling, and…
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Guide
Budget for Damaged-Delivery Replacements
Estimate replacement costs and uncertain carrier or supplier recoveries separately, with a cohort allowance…
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Guide
Moving Sales Channels: Retention and Transition Costs
Model moving existing order volume to another sales channel with customer retention, new unit costs,…
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Guide
Payment Disputes: Outcome Cost Scenarios
Separate an initial disputed-payment debit from final outcome costs, using entered fees, recovery…
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Guide
Digital Products: Include Support Cost per Buyer
Estimate support contacts, handling time, and cost per digital-product buyer, then connect that workload to…
Reference tables and worked examples
Inspect the intermediate numbers and the limits of the model.
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Chart
Percentage and Fixed Fee Reference
Inspect hypothetical percentage-plus-fixed fees across order amounts, separating the dollar fee from its…
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Chart
Acquisition Contribution Payback Table
Compare retained orders required to recover a hypothetical $60 acquisition cost at several contribution levels…
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Chart
Online Order Contribution Worked Example
Follow one hypothetical online order from discounted merchandise and shipping collected through fees, delivery…
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Chart
Coupon Incrementality Reference Table
Compare coupon contribution at different incremental order shares, including the threshold where additional…
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Chart
Returned Goods Recovery Reference
Trace net recovery from returned goods at five resale shares, including reconditioning, handling and…
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Chart
Worked Example: Coupon Orders and Natural Buyers
Reconcile profitable coupon orders with a campaign loss by separating customers who would buy anyway from…
All calculators
Return to the complete tool directory.
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Collection
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