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InventoryJuly 20265 min readBy Siddharth Deepak — Founder

Dead Stock Math: What Unmoving Inventory Actually Costs You

Inventory that doesn't move feels like an asset on the balance sheet. Operationally it's a slow leak: capital, storage, and shrinking resale value, compounding monthly.

The three costs of a unit that won't sell

monthly_carry = unit_cost × capital_rate + storage_fee + (unit_value × decay_rate)
dead_flag = weeks_of_cover > 26 (stock ÷ weekly velocity)

The clearance break-even

The question is never "can we sell it at full price eventually" — it's "does waiting beat clearing now." Compare today's clearance recovery against expected full-price sales minus the carry you'll pay while waiting:

clear_now = units × clearance_price
wait = (expected_units_sold × full_price) − (months_waiting × monthly_carry × units)

For genuinely dead SKUs — months of cover, no seasonality coming — clear_now wins far more often than it feels like it should. The instinct to protect the original cost basis is sunk-cost accounting; the cash already left.

Make it a monthly reflex

Compute weeks-of-cover per SKU from your inventory and sales exports monthly. Anything crossing the threshold goes on the clearance-or-bundle list before it ages into a write-off. Dead stock caught at month 4 recovers double what it does at month 10.

Computed, not estimated

ProfitFalcon runs this exact math on your store exports — every number verifiable.

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