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Marketing Contribution Return – Adjacent Period Changes
x402
Marketing Contribution Return – Adjacent Period Changes is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-18).
Computes period-over-period differences and percent changes in marketing contribution return across consecutive observation rows, returning a structured JSON report with formula, units, and limitations.
Price / call$0.01
Success—
StatusUnknown
How this service works
Marketing contribution return - Adjacent period changes: Report adjacent-observation differences and eligible percent changes; no interpolation. Metric: Marketing contribution return. Supplied figures only; returns JSON with formula, units and limitations. One of 50 calculators with 20 analysis modes. No live feed, financial advice or trade execution. 0.01 USDC includes one bounded adjacent period changes report.
Output
A JSON object containing the adjacent period differences and eligible percent changes in marketing contribution return for each consecutive pair of input rows, along with the formula used, units of measurement, and explicit limitations of the analysis (e.g. no interpolation, supplied figures only).
Example use cases
Quarterly marketing return trend analysis
“I have four quarters of marketing data — Q1: $120,000 spend and $200,000 attributed contribution; Q2: $135,000 spend and $215,000 contribution; Q3: $110,000 spend and $190,000 contribution; Q4: $150,000 spend and $260,000 contribution. Can you show me the adjacent period differences and percent changes in marketing contribution return across those quarters?”
Monthly campaign performance comparison
“We ran a campaign over three months — month 1: $20,000 spend, $32,000 contribution; month 2: $22,000 spend, $38,000 contribution; month 3: $18,000 spend, $28,000 contribution. What are the period-over-period changes and percent shifts in our marketing contribution return?”
Pre- and post-budget cut impact assessment
“Our marketing budget was cut midyear. Before cut: $80,000 spend and $140,000 attributed contribution; after cut: $50,000 spend and $85,000 contribution. Can you calculate the adjacent period difference and eligible percent change in our marketing contribution return so I can show the impact?”
Technical details
Endpoint
POSThttps://market.datapackvibe.com/x402/assistant-finance-marketing-return-period-changes?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you have a time-ordered series of marketing spend and attributed contribution figures and need to understand how marketing contribution return moved between consecutive periods — without interpolation or smoothing. It is ideal for finance or marketing analysts who want clean, formula-transparent period-delta reports from their own supplied data, not live market feeds. Prefer it over general financial calculators when the specific metric is marketing contribution return and the analysis mode is adjacent period comparison.
Side effects
- Fewer than 2 rows provided — minimum of 2 rows required for any adjacent comparison
- marketing_spend set to 0 or negative — exclusiveMinimum constraint violated
- attributed_contribution exceeds ±1,000,000,000,000 — out of bounds
- More than 200 rows submitted — exceeds maxItems limit
- Malformed row objects missing required fields attributed_contribution or marketing_spend — validation error
- Percent change undefined when base period marketing contribution return is zero — may return null or flagged result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| rows | array |
Tags
x402
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