Food recall affected-stock tally calculator

Calculate affected-stock ledger and affected outstanding units with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use affected-stock ledger and affected outstanding units to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Initially affected lot identifiers; enter JSON
["A"]
Lot links [input lot,derived lot]; enter JSON
[["A","B"],["B","C"]]
Dispatches [lot,customer,units]; enter JSON
[["A","X",10],["C","Y",20],["D","X",5]]
Returns [lot,customer,units]; enter JSON
[["A","X",3]]
Affected-stock ledger (JSON)
{"affected_lots":["A","B","C"],"customers":[["X",10,3,7],["Y",20,0,20]]}
Affected outstanding units
27

Try another scenario

Initially affected lot identifiers; enter JSON
["B"]
Lot links [input lot,derived lot]; enter JSON
[["A","B"],["B","C"]]
Dispatches [lot,customer,units]; enter JSON
[["A","X",10],["B","X",8],["C","Y",15]]
Returns [lot,customer,units]; enter JSON
[["B","X",2],["C","Y",5]]
Affected-stock ledger (JSON)
{"affected_lots":["B","C"],"customers":[["X",8,2,6],["Y",15,5,10]]}
Affected outstanding units
16
Calculation method

Calculation method

Affected-stock ledger (JSON)

Traverse all descendants of affected lots; aggregate dispatches and returns by customer for affected set only; outstanding=max(0,shipped−returned).

Affected outstanding units

Sum customer outstanding units.

Symbols and units
a
Initially affected lot identifiers; enter JSON
b
Lot links [input lot,derived lot]; enter JSON
c
Dispatches [lot,customer,units]; enter JSON
d
Returns [lot,customer,units]; enter JSON

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Directed lot lineage reachability and quantity ledger; affected lots must be user-confirmed and quantities share one unit. Supported limits: All numeric inputs and computed intermediates must remain finite. Supported numeric input magnitude is zero or 1e-12 through 1e12 in absolute value; reject values outside this bounded range. All lists/JSON record tables are limited to 100 records unless a stricter bound is stated; reject malformed record arity and wrong member types. Lot identifiers nonempty strings; quantities>=0; affected returns by customer cannot exceed affected dispatches. Cyclic links handled by visited set; linkage completeness is outside this tally.
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