Receive the source
Old and proposed values side by side
Turn incoming information into an approved record, with clear ownership and no silent overwrites.

The same figure is rekeyed into multiple places.
A revised report arrives without a clear owner.
No one can explain which version is authoritative.
Inspect the source, review responsibility and required output at each stage of the process.
An incoming document cannot silently replace the approved record.
Old and proposed values side by side
A retained source and review decision
A consistent record for the next report
Retain the source, the investment rationale and the review decision. Keep subsequent updates separate from the original record.
Each material figure needs an investment identity, reporting period, currency and source. A valuation also needs its effective date and basis. Keeping these fields together allows the reviewer to establish what the number represents before using it in analysis or reporting.
Present incoming figures beside the approved record. A board update may revise revenue or cash runway while the last approved holding value remains unchanged. Retain the source passage, review decision and prior values so the reason for each accepted change remains available.
The principal’s briefing should lead back to the approved investment record and its supporting source. An analyst should be able to explain the date, basis and review history of a figure without reconstructing an inbox or comparing separate versions of the report.

Review a new opportunity against your mandate. See the supporting evidence, material risks and questions for diligence.