Seller Profit Guard

Refund vs Replacement Calculator worked example

Last updated: 2026-07-31

Written and reviewed by Seller Profit Guard Editorial Team.

A USD 40 item with USD 8 buyer shipping has USD 23.70 contribution before resolution. A full refund path loses USD 45 after fee credit, while a like-for-like replacement loses USD 22, leaves USD 1.70 contribution, and clears a USD 25 target.

low-cost resolution reconstruction from original order and case evidence to refund and replacement losses
This original diagram explains a fully traced low-cost case with synthetic values.

Freeze the synthetic case

Reconstruct control 1: Use one completed physical order, one item, one issue, one policy and agreement state, one currency, and one evidence month. This example role exposes the arithmetic tape and evidence snapshot in execution order. Record case alias, source state, full-precision value, display value, currency, responsibility, reviewer, and review date.

Test the nearest valid boundary and counterexample. State how a mismatch changes a fully traced low-cost case, which evidence resolves it, who owns correction, and whether the packet must be blocked, reviewed, limited, superseded, or restored.

Reconstruct original contribution

Reconstruct control 2: Extend USD 40 merchandise plus USD 8 shipping, then subtract USD 12 product, USD 8 postage, and USD 4.30 fees. This example role exposes the arithmetic tape and evidence snapshot in execution order. Record case alias, source state, full-precision value, display value, currency, responsibility, reviewer, and review date.

Test the nearest valid boundary and counterexample. State how a mismatch changes a fully traced low-cost case, which evidence resolves it, who owns correction, and whether the packet must be blocked, reviewed, limited, superseded, or restored.

Reconstruct the full refund

Reconstruct control 3: Add USD 40 merchandise refund, USD 8 shipping refund, and USD 1 processing; subtract USD 4 fee credit. This example role exposes the arithmetic tape and evidence snapshot in execution order. Record case alias, source state, full-precision value, display value, currency, responsibility, reviewer, and review date.

Test the nearest valid boundary and counterexample. State how a mismatch changes a fully traced low-cost case, which evidence resolves it, who owns correction, and whether the packet must be blocked, reviewed, limited, superseded, or restored.

Explain USD 45 refund loss

Reconstruct control 4: Show every cash and recovery line in execution order without counting original cost a second time. This example role exposes the arithmetic tape and evidence snapshot in execution order. Record case alias, source state, full-precision value, display value, currency, responsibility, reviewer, and review date.

Test the nearest valid boundary and counterexample. State how a mismatch changes a fully traced low-cost case, which evidence resolves it, who owns correction, and whether the packet must be blocked, reviewed, limited, superseded, or restored.

low-cost resolution reconstruction: explain usd 45 refund loss
This original diagram makes a fully traced low-cost case reviewable.

Reconstruct replacement cost

Reconstruct control 5: Add one USD 12 item, USD 8 outbound shipping, and USD 2 packaging and handling. This example role exposes the arithmetic tape and evidence snapshot in execution order. Record case alias, source state, full-precision value, display value, currency, responsibility, reviewer, and review date.

Test the nearest valid boundary and counterexample. State how a mismatch changes a fully traced low-cost case, which evidence resolves it, who owns correction, and whether the packet must be blocked, reviewed, limited, superseded, or restored.

Explain USD 22 replacement loss

Reconstruct control 6: Preserve zero claim recovery and zero buyer payment rather than hiding them. This example role exposes the arithmetic tape and evidence snapshot in execution order. Record case alias, source state, full-precision value, display value, currency, responsibility, reviewer, and review date.

Test the nearest valid boundary and counterexample. State how a mismatch changes a fully traced low-cost case, which evidence resolves it, who owns correction, and whether the packet must be blocked, reviewed, limited, superseded, or restored.

Reconstruct remaining contribution

Reconstruct control 7: Subtract USD 22 from USD 23.70 to obtain USD 1.70 after replacement; show USD minus 21.30 after refund. This example role exposes the arithmetic tape and evidence snapshot in execution order. Record case alias, source state, full-precision value, display value, currency, responsibility, reviewer, and review date.

Test the nearest valid boundary and counterexample. State how a mismatch changes a fully traced low-cost case, which evidence resolves it, who owns correction, and whether the packet must be blocked, reviewed, limited, superseded, or restored.

Reconstruct target and difference

Reconstruct control 8: Show replacement USD 23 lower than refund and USD 3 inside the seller-owned maximum. This example role exposes the arithmetic tape and evidence snapshot in execution order. Record case alias, source state, full-precision value, display value, currency, responsibility, reviewer, and review date.

Test the nearest valid boundary and counterexample. State how a mismatch changes a fully traced low-cost case, which evidence resolves it, who owns correction, and whether the packet must be blocked, reviewed, limited, superseded, or restored.

Use the low-cost resolution reconstruction with one protected case packet

Open the calculator only after the low-cost resolution reconstruction identifies order alias, original economics, refund cash, return cost, processing, credits, recovered inventory, replacement quantity and costs, recovery, buyer payment, absolute target, lower-loss-share maximum, scenario-difference minimum, source review date, nine evidence confirmations, currency, policy and case context, month, complete scope, and issues.

Save original contribution, both incremental losses, both remaining contributions, lower scenario, absolute difference, normalized difference rate, lower-loss share, threshold headroom, decision, and issues at full precision. Preserve every version when policy, posting, inspection, claim, or invoice evidence changes.

low-cost resolution reconstruction: use the low-cost resolution reconstruction with one protected case packet
This original diagram makes a fully traced low-cost case reviewable.

Separate cost review from remedy authority before a fully traced low-cost case

Use the model to compare declared seller costs only. Route buyer rights, shop obligations, platform eligibility, case instructions, agreement, consumer law, coverage, timing, and actual remedy to the authorized evidence and decision process.

A lower modeled loss never permits an inaccurate refund, unsupported refusal, delayed obligation, unwanted replacement, or customer-facing promise.

Version expected, approved, and received recovery

Keep fee credits, inventory recovery, carrier claims, insurance, platform coverage, supplier credits, and buyer payments in separate evidence states with amount, currency, source, date, owner, and dispute status.

Expected recovery is not received cash. Unknown, denied, expired, disputed, or missing recovery is not zero and cannot silently retain Ready.

Protect buyer, message, payment, and case records

Public examples are synthetic. Keep names, addresses, emails, messages, tracking, case records, payment data, claims, accounts, invoices, credentials, photos, and raw orders outside the low-cost resolution reconstruction.

Use aliases, aggregates, redacted pointers, access controls, and approved fixtures. An authorized reviewer should reproduce totals without public personal data.

Release, observe, correct, and restore the resolution asset

Before release, preserve narrow local and remote backups and a rollback identifier. Run typecheck, focused and full tests, integration, build, content and duplicate audits, SEO, routes, sources, images, links, mobile, keyboard, privacy, and restore checks.

After release, verify status, canonical, indexability, schema, answer blocks, images, hub discovery, strict 404, sitemap policy, events, and production scenarios. Record Day 0/7/14/28 evidence and restore on formula, privacy, source, accessibility, routing, content, or health regression.

Write an arithmetic tape

Show inputs, source state, every transformation, full precision, display value, status, and next evidence action.

A reader should reproduce all four headline amounts.

low-cost resolution reconstruction: write an arithmetic tape
This original diagram makes a fully traced low-cost case reviewable.

Run a one-dollar replacement test

Increase replacement shipping by USD 1 and predict loss, contribution, difference, and headroom.

Only the replacement path should move by USD 1.

Reconcile later evidence

Version a fee credit, returned-item recovery, claim decision, label adjustment, or invoice separately.

Do not overwrite the original worked example.

Snapshot

Freeze case, policy, agreement, and amount versions. Deep check 1 stores case and order aliases, source versions, protected pointers, full-precision transformations, output, decision, authority, reviewer, expiry, and correction route. Another reviewer must not guess refund scope, recovery state, replacement grain, or formula sign.

Find the closest counterexample and state why it invalidates or narrows a fully traced low-cost case. Preserve competing policy, agreement, platform, payment, return, inventory, replacement, claim, fee, target, or scope evidence as named scenarios rather than blending uncertainty.

Arithmetic

Expose each addition and subtraction. Deep check 2 stores case and order aliases, source versions, protected pointers, full-precision transformations, output, decision, authority, reviewer, expiry, and correction route. Another reviewer must not guess refund scope, recovery state, replacement grain, or formula sign.

Find the closest counterexample and state why it invalidates or narrows a fully traced low-cost case. Preserve competing policy, agreement, platform, payment, return, inventory, replacement, claim, fee, target, or scope evidence as named scenarios rather than blending uncertainty.

Sensitivity

Predict exact one-dollar movements. Deep check 3 stores case and order aliases, source versions, protected pointers, full-precision transformations, output, decision, authority, reviewer, expiry, and correction route. Another reviewer must not guess refund scope, recovery state, replacement grain, or formula sign.

Find the closest counterexample and state why it invalidates or narrows a fully traced low-cost case. Preserve competing policy, agreement, platform, payment, return, inventory, replacement, claim, fee, target, or scope evidence as named scenarios rather than blending uncertainty.

Decision

Trace Ready after structure and target. Deep check 4 stores case and order aliases, source versions, protected pointers, full-precision transformations, output, decision, authority, reviewer, expiry, and correction route. Another reviewer must not guess refund scope, recovery state, replacement grain, or formula sign.

Find the closest counterexample and state why it invalidates or narrows a fully traced low-cost case. Preserve competing policy, agreement, platform, payment, return, inventory, replacement, claim, fee, target, or scope evidence as named scenarios rather than blending uncertainty.

Reperformance

Require independent reproduction. Deep check 5 stores case and order aliases, source versions, protected pointers, full-precision transformations, output, decision, authority, reviewer, expiry, and correction route. Another reviewer must not guess refund scope, recovery state, replacement grain, or formula sign.

Find the closest counterexample and state why it invalidates or narrows a fully traced low-cost case. Preserve competing policy, agreement, platform, payment, return, inventory, replacement, claim, fee, target, or scope evidence as named scenarios rather than blending uncertainty.

Sources and further reading

Related Seller Profit Guard tools

Next step: Open the Refund vs Replacement Calculator.

This is operational planning help, not tax, accounting, legal, financial, or platform-policy advice. Review the Terms and disclaimer, and verify current platform rules and fee assumptions before changing prices.