---
title: "EstimateReturnInput"
description: "the buyer, the offering or tier, the numbers stated for this ask, and whether to simulate"
section: concepts
address: /concepts/estimatereturninput
contract: 0476e35e6e275db5
---

# EstimateReturnInput

the buyer, the offering or tier, the numbers stated for this ask, and whether to simulate

[figure: EstimateReturnInput is a value at none scope. The drawing shows its fields and the objects that they point at.]

| property | value |
|---|---|
| kind | value |
| scope | none |
| key | one ask of an estimate |
| store | none |
| family | market |



## Fields


| field | type | required | note |
|---|---|---|---|
| `buyer` | [UnitRef](/concepts/unitref) | yes |  |
| `offering` | `id` | no |  |
| `tier` | `text` | no |  |
| `stated` | `{text:json}` | no | driver name to value, each written as a stated number before the estimate reads it |
| `simulate` | `bool` | yes |  |



## Routes that use it
- [`/v1/economics/estimate`](/reference/economics/estimate) takes it as input