What does the charged share mean?

It is the portion of the scrap cost allocated to this line or period under your accounting rule. A 50% share charges half the variable cost, while the fixed containment remains the full amount entered.

Why does the per-winding cost fall as scrap rises?

The fixed containment cost is spread over more winding units. The variable cost per winding is flat, so only the fixed part changes the per-unit figure as the count moves.

Should recovered copper reduce the scrap cost?

Keep recovery separate and price the scrap as the dispositioned loss. If copper revenue is material, subtract it in a second step so this total matches the cost records it came from.

When is a scrap winding a rework instead?

When the winding can be stripped, rewound and returned to the build, it is rework and belongs in a rework cost. Count it here only when the winding leaves the usable flow for good.

Motors, Generators & Electrification Equipment calculator

Winding Scrap Cost Calculator

Total the scrap cost a winding line carries from its scrapped count and the share charged to this line. Fixed containment is added once, and the per-winding figure normalizes the total by the scrapped count.

What this calculator does

Winding scrap cost from scrapped count, per-winding cost, charged share and fixed containment.

Formula used

Variable scrap cost = scrapped windings × cost per winding × charged share ÷ 100
Total scrap cost = variable scrap cost + fixed containment cost
Scrap cost per winding = total scrap cost ÷ scrapped windings

Inputs explained

Scrapped Windings: Whole windings scrapped on this line or period.
Cost per Scrapped Winding: Average cost charged per scrapped winding.
Share Charged to This Line: Share of the scrap cost charged to this line.
Fixed Containment Cost: Fixed containment cost charged once for the run.

How to use the result

Best suited to charging a rejected winding lot, splitting scrap cost between two lines, budgeting containment for a pilot run.
The charged share follows your allocation rule; it does not prove who caused the scrap. A single per-winding cost hides differences between winding sizes and scrap reasons.

Current U.S. benchmarks

The producer price index for primary nonferrous metals (a broad metals benchmark, not copper alone) stands at 544.731 (BLS, Aug 2026), up 49.3% from a year earlier. Quotes priced off last quarter's material cost miss this move. Global copper trades at $13,543 per tonne (IMF via FRED, Jul 2026).
Steel mill PPI stands at 381.162 (BLS, Aug 2026), up 23.4% from a year earlier. New factory orders are up 8.5% year over year (Census).
The U.S. has 5,397 electrical equipment and appliances establishments employing about 369,437 workers (Census County Business Patterns, 2023).

Common questions

What does the charged share mean? It is the portion of the scrap cost allocated to this line or period under your accounting rule. A 50% share charges half the variable cost, while the fixed containment remains the full amount entered.
Why does the per-winding cost fall as scrap rises? The fixed containment cost is spread over more winding units. The variable cost per winding is flat, so only the fixed part changes the per-unit figure as the count moves.
Should recovered copper reduce the scrap cost? Keep recovery separate and price the scrap as the dispositioned loss. If copper revenue is material, subtract it in a second step so this total matches the cost records it came from.
When is a scrap winding a rework instead? When the winding can be stripped, rewound and returned to the build, it is rework and belongs in a rework cost. Count it here only when the winding leaves the usable flow for good.

Last reviewed 2026-10-01.