Appendix A - Formulas

 

Formulas, Formulas, & More Formulas

Description

Formula

Estimated Yield

Production Quantity times Yield % equals Yield

Production Quantity Desired divided by Yield % equals Quantity Required on Production Order

Net Hours per Piece

(Hrs/Piece divided by Pieces/Hr) divided by Yield % plus (Setup Time divided by Standard Lot Size)

Direct Cost per Piece

Net Hours times Direct Rate

Overhead Cost per Piece

Direct Cost per Piece times Overhead Factor

Total Labor Cost per Piece

(Net Hours times Direct Rate) plus (Net Hours times Direct Rate times Overhead Factor)

-or-

Direct Cost plus Overhead Cost

Scrap Factor

Dimensions of Desired Piece divided by Dimensions of Original Piece, converted to %


Description

Formula

Net Quantity per Piece Material

Quantity Required times Alternate Factor divided by (Divisor times (100 - Scrap Factor)) divided by Yield %

Material Cost per Piece

Net Quantity times Unit Cost

Net Quantity per Piece Subcontractor

Quantity Required times Alternate Factor divided by Divisor

Subcontract Cost per Piece

Net Quantity times Unit Cost

Total Cost per Piece

Total Labor Cost plus Total Material Cost plus Total Subcontract Cost

Direct Cost per Production Quantity

Production Quantity times (Hours per piece times Direct Rate divided by Pieces per Hour) divided by Yield % plus (Setup Time times Direct Rate)

Overhead Cost per Production Quantity

Direct Cost per Production Quantity times Overhead Factor

 

Inventory Production Update Costing Methods

 

Method for Costing

Calculated Finished Goods Value

Variance Calculation

Impact on Inventory Item Cost

Standard

Standard Inventory Cost from Item Master File times Quantity

Calculated Finished Goods Value less Current Bill of Materials Cost

None

Average

Current Bill of Materials Costs times Quantity

None

Main Bills and Phantom Bills Updated

Replacement

Current Bill of Materials Costs times Quantity

None

Main Bills and Phantom Bills Updated

 



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