Payment Method Distribution

Payment Method Distribution: Breakdown of payments by method.

Formula

Method share = Invoiced amount in period paid by the method / Invoiced amount in period with a known method

Computable definition

The canonical formula in the GASP formula grammar. The MCP server compiles it to SQL over the datasets listed below.

sum(field.invoice_amount where in_period(field.invoice_date)) / total(sum(field.invoice_amount where in_period(field.invoice_date) and field.payment_method is not null))

Unit: percent (the formula yields an unscaled ratio)

Breakdowns

Reported with one row per payment_method value, each read against the whole population (share of total)

Notes: Reported per payment method: invoiced amount in the period paid by the method over invoiced amount with a known method.

Data requirements

Grain: Per event · Frequency: Per transaction · Aggregation: event · Staged: no · Main source: Billing.

Field	Dataset	Type
`invoice_amount`	invoice	decimal
`invoice_date`	invoice	date
`payment_method`	invoice	string
`snapshot_date`	invoice	date

Example SQL (Postgres)

SELECT _d.payment_method AS payment_method, (CAST((SELECT COALESCE(SUM(invoice_amount), 0) FROM invoice WHERE snapshot_date = :period_end AND (invoice_date >= :period_start AND invoice_date <= :period_end) AND payment_method = _d.payment_method) AS DOUBLE PRECISION) / NULLIF((SELECT COALESCE(SUM(invoice_amount), 0) FROM invoice WHERE snapshot_date = :period_end AND ((invoice_date >= :period_start AND invoice_date <= :period_end) AND payment_method IS NOT NULL)), 0)) AS payment_method_distribution
FROM (SELECT 'credit_card' AS payment_method UNION ALL SELECT 'ach' AS payment_method UNION ALL SELECT 'wire' AS payment_method UNION ALL SELECT 'check' AS payment_method UNION ALL SELECT 'other' AS payment_method) _d

From an agent: with the GASP MCP server, call lookup_metric({ "name": "Payment Method Distribution" }) or generate_query({ "metric": "Payment Method Distribution", "adapter": "<your adapter JSON>" }).

What It Tells You

Collection risk and processing costs by method.

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