Foreign Transaction Fee Total Cost Percent Calculator
Reconcile already converted home-currency purchase with caller foreign-transaction rate and separately observed conversion spread cost; no market FX/DCC spread invention, double-counting of fees already in base or zero-denominator percentage.
Description
Foreign-transaction cost can include a percentage fee plus independently observed conversion spread cost.
Foreign-transaction cost can include a percentage fee plus independently observed conversion spread cost. The converted purchase base must exclude those extra costs.1
The returned values include Foreign transaction fee minor, Total observed and modeled fx extra cost minor, Effective fx extra cost percent, Total home currency cost minor. The How section below explains the calculation, input rules and interpretation.
When to use Foreign Transaction Fee Total Cost Percent Calculator
Use Foreign Transaction Fee Total Cost Percent Calculator when you need to evaluate the supplied records under the calculation and evidence rules below. No market FX/DCC spread, current fee table or correction for double-counted base costs is inferred.
Prepare observed financial records and verified caller terms. Use one currency for integer minor-unit money and preserve leading zeros in identifier text. One basis point is 0.01 percentage points. Resolve dates, local clocks, counting rules and evidence flags as specified.
How to use Foreign Transaction Fee Total Cost Percent Calculator and understand its results
- Prepare observed financial records and verified caller terms. Use one currency for integer minor-unit money and preserve leading zeros in identifier text. One basis point is 0.01 percentage points. Resolve dates, local clocks, counting rules and evidence flags as specified.
- Enter homeCurrencyConvertedPurchaseMinor, callerForeignTransactionFeeBasisPoints, observedAdditionalConversionCostMinor using the field table and calculation rules, then run the tool.
- Read foreignTransactionFeeMinor, totalObservedAndModeledFxExtraCostMinor, effectiveFxExtraCostPercent, totalHomeCurrencyCostMinor. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| homeCurrencyConvertedPurchaseMinor | Home currency converted purchase minor | number | Required |
| callerForeignTransactionFeeBasisPoints | Caller foreign transaction fee basis points | number | Required |
| observedAdditionalConversionCostMinor | Observed additional conversion cost minor | number | Required |
Enter positive safe-integer converted home-currency purchase, nonnegative safe-integer additional conversion cost and integer fee basis points 0–10000. Return fee, combined extra cost, extra-cost percent and total cost with checked sums.
fee=roundMinor(base×bps/10000); extra=fee+conversionCost; percent=100extra/base Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| foreignTransactionFeeMinor | Foreign transaction fee minor | number |
| totalObservedAndModeledFxExtraCostMinor | Total observed and modeled fx extra cost minor | number |
| effectiveFxExtraCostPercent | Effective fx extra cost percent | number |
| totalHomeCurrencyCostMinor | Total home currency cost minor | number |
{
"input": {
"homeCurrencyConvertedPurchaseMinor": 10000,
"callerForeignTransactionFeeBasisPoints": 300,
"observedAdditionalConversionCostMinor": 100
},
"output": {
"foreignTransactionFeeMinor": 300,
"totalObservedAndModeledFxExtraCostMinor": 400,
"effectiveFxExtraCostPercent": 4,
"totalHomeCurrencyCostMinor": 10400
}
}Limitations and assumptions
No market FX/DCC spread, current fee table or correction for double-counted base costs is inferred.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Cross Rate Triangular Computation Tool: A triangular cross quote multiplies two legs with the same bridge orientation. An observed direct quote exposes a signed discrepancy. For a complementary task, use Rewards Effective Value Percent Calculator: Realized reward value must be compared with observed eligible spend after allocated fees. Net reward value can be negative.
References
Similar or alternative tools
- Cross Rate Triangular Computation Tool
A triangular cross quote multiplies two legs with the same bridge orientation. An observed direct quote exposes a signed discrepancy.
- Rewards Effective Value Percent Calculator
Realized reward value must be compared with observed eligible spend after allocated fees. Net reward value can be negative.