Return Restocking Fee Base Tool

Description

Subtract excludedValue from returnedGoodsValue for feeBase.

Inventory charges and price differences require a common currency and unit basis. A fee fraction or unit-price variance is one component of a transaction rather than its complete landed cost.

Subtract excludedValue from returnedGoodsValue for feeBase.

When to use this tool

Use Return Restocking Fee Base when you need one procurement or stock-cost component from supplied amounts.

How to use the tool and how it works

Enter returnedGoodsValue, excludedValue, feeFraction. Use the units and conventions below.
Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
Read feeBase, restockingFee, netCredit. Use the output convention below.

Subtract excludedValue from returnedGoodsValue for feeBase. Multiply by feeFraction in [0, 1] and subtract that fee from the whole returned value for netCredit.^[1]

Input field	Meaning and units	Accepted input
returnedGoodsValue	Returned Goods Value	Required. Finite number; minimum 0.
excludedValue	Excluded Value	Required. Finite number; minimum 0.
feeFraction	Fee Fraction	Required. Finite number; minimum 0; maximum 1.

Output field	Interpretation	Returned shape
feeBase	Fee Base	Required. Finite number.
restockingFee	Restocking Fee	Required. Finite number.
netCredit	Net Credit	Required. Finite number.

json

{
  "input": {
    "returnedGoodsValue": 100,
    "excludedValue": 20,
    "feeFraction": 0.1
  },
  "output": {
    "feeBase": 80,
    "restockingFee": 8,
    "netCredit": 92
  }
}

Limitations and assumptions

Excluded value avoids the fee but remains in the credit; contractual rights, taxes, and monetary rounding are not determined.
Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Reconcile the result with the invoice, contract terms, taxes, and any charges outside this calculation.

References

Calculation and input contract: supply-chain/return-restocking-fee-base — tool.io

Similar or alternative tools

Purchase Order Unit Price Variance
Subtract orderedUnitPrice from invoicedUnitPrice for unitVariance and multiply by nonnegative quantity for totalVariance.
Subscription Renewal Credit
Subtract creditAmount from renewalCharge with a zero floor for amountDue and return the reverse excess with a zero floor as excessCredit.