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Money · Guided lesson

Reallocate a refund and a departure cost

About 10 minutes · 3 reading + 7 practice and checks
Time includes reading, practice, and questions. Extra videos or further study are optional.
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A fictional shared-cost agreement and balanced settlement ledger with equal/weighted splits, individual exclusions and departure reconciliation.

Keep your working files in your own notebook or software. Save a private description, checklist, and work link in My Proof.

What to include

  • A shared/personal expense register with explicit participants.
  • An equal/weighted contribution comparison and rule record.
  • A sum-zero shared-expense settlement ledger.
  • A two-transfer settlement plan and post-settlement balance check.
  • A refund/departure adjustment log with revised settlement balances.
  • A complete fictional shared-finance agreement and audit record.

Review and revise

Use these criteria to check your work and choose what to improve.

  • All supplied records reconcile and the decision uses the named case rules.
  • Calculations show units, intermediate values and a second check.
  • Changed-input practice revises the affected result and identifies uncertainty.
  • The final project combines six lesson records, separates fictional assumptions from current rules, and states a supported next step.
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Before you begin

The idea in everyday life

This is an original fictional practice case. No account, payment, personal record or outside participation is required. Ari paid a $90 shared item for three equal participants; a $30 refund arrives to Ari before any settlement.

The idea

A refund belongs to the same participants and rule as the expense it reverses unless a new agreement says otherwise.

Follow along

Reallocate a refund and a departure cost — worked practice

A refund belongs to the same participants and rule as the expense it reverses unless a new agreement says otherwise.

Use paper or a local table; label all amounts as fictional USD unless the case names another unit. Ari paid a $90 shared item for three equal participants; a $30 refund arrives to Ari before any settlement.

Refund-adjusted shared purchase

Paste at A1.

AReceipt recordBRecipient or payerCSigned shared cash USD
Original purchaseAri90
Refund before settlementAri-30

Copy as plain text
  1. 1. Step 1: Link the refund to its original expense ID

    Link the refund to its original expense ID.

    You should see: Original net cost is 90−30=$60.

    A refund belongs to the same participants and rule as the expense it reverses unless a new agreement says otherwise.

  2. 2. Step 2: Recalculate equal obligations

    Recalculate equal obligations.

    You should see: $20 each.

    Keep this intermediate result so the final decision can be checked.

  3. 3. Step 3: Recalculate Ari’s net paid after refund

    Recalculate Ari’s net paid after refund.

    You should see: $60 paid; obligation $20; receivable $40.

    Keep this intermediate result so the final decision can be checked.

  4. 4. Step 4: Plan the revised settlement

    Plan the revised settlement.

    You should see: Bo and Cy each pay Ari $20; do not leave the original $30 shares active.

    Keep this intermediate result so the final decision can be checked.

Now change one thing

Refund rises to $45. Each person’s revised share?

Your work

What to finish

A refund/departure adjustment log with revised settlement balances.

Common mistake

Watch for this

Keeping the original gross shares after receiving a refund.

How can I tell I understand it?

Link shared refunds to original costs and recompute participant obligations on the supplied changed case while preserving the stated rule and checking the final record.

Try 3 questions

Quick knowledge check

Answer all 3 questions. Get at least 2 right and the lesson completes automatically.

Not yet passed

You’ll get an explanation for each answer. Signed in? Your results save to your account.

1Three equal participants in a $120 item receive a $30 refund: each net share?
2One person departs halfway through a month. What should govern the split?
3A refund arrives after settlement. What should the ledger do?
0 of 3 answeredApply the lesson to a short question, then review the explanation.
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Answer all 3 questions above and get at least 2 right. You can review the explanations and try again.

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Sources and further reading

Explore the references behind this lesson.

CFPB — Bank accounts
Source & access notes · checked 2026-10-01

Official page opened/read during Money expansion authoring; checked the relevant concept and access state. These sources do not establish funding eligibility.

Access: Readable official webpage inspected with the web reader on 2026-10-01. No interactive-tool operation is claimed.

Reuse: Original fictional practice, questions and calculations; paraphrased concepts with a source link. No source exercise copied.

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