Surplus Market

Free Tool

Inventory Ageing Calculator

Estimate how much value your surplus stock is losing to depreciation and storage over time — so you know when to liquidate.

Your inventory

Results

Depreciation to Date
Storage Cost to Date
Current Inventory Value
% Change in Value
Monthly Holding Cost
In Percentage

Estimates for guidance only. Effective age is taken as half the inventory age. Depreciation = Value × (effective age / lifetime); storage cost = monthly storage × effective age.

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