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The first step ends with the final listing address written down.
Method · Price evidence
Record one price so it can be rechecked
Every step writes one field of the evidence record; skipped steps become visible gaps.
Before starting
Have these within reach
- The live listing for the row's exact option
- A column layout that separates amount, currency, and date
- The platform's own FAQ for fee questions
Four-step method
Turn one row into one price evidence record
The method treats the spreadsheet as an observation log, not a price list, which is what keeps later comparisons defensible.
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1. Copy the exact amount
Write the number and currency shown for the row's exact size or color option.
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2. Mark the source and boundary
Note where the price appeared and what it visibly excluded, such as shipping.
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3. Date the observation
Put the observation date on the line the moment the value is copied.
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4. Schedule the recheck
Set the next recheck trigger: a payment step, a listing notice, or a passed date.
Step outputs
Each step leaves something reusable
Naming the output of every step keeps an interrupted session resumable and a finished record auditable.
Copied wording
The second step ends with exact option text, not a paraphrase.
Dated observation
The last steps end with values that each carry their observation date.
Worked example
An option change is a new price line, not an edit
When selecting a different size changes the shown amount, the row gains a second dated line instead of replacing the first observation.
Step output
Each step names its output so an interrupted run can resume cleanly.
Stop condition
A missing source or undated observation stops the step, not the method.
Resume point
The last completed output marks where the next session continues.
Return to the live source with a complete record
The saved record should explain both the observation and its limits.