---
title: Metric Summary Table
description: How to use Mycelia to help assess biodiversity data.
---

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# Metric Summary Table

The Metric Summary Tables condense the information contained across up to 20 tabs of the biodiversity metric spreadsheet into a set of clear, high-level tables. This allows assessors to quickly understand what is happening in the metric before diving into detailed habitat-level data.

**Learn about using the metric summary table in this video.**

<iframe allowfullscreen="true" frameborder="0" scrolling="no" src="https://www.youtube.com/embed/O2q_bPjgTP4" title="Assessment Part 2: Using the Metric Summary Table"></iframe>

## How the tables are structured

Each summary table has three rows, one for each habitat category:

- **Area habitats**
- **Hedgerows**
- **Watercourses**

The columns show the key stages of the metric:

- **Pre-intervention** - the baseline biodiversity value
- **Losses** - biodiversity units lost through development
- **Post-intervention** - the biodiversity value after proposed habitat creation or enhancement
- **Net change** - the difference in biodiversity units and the percentage net gain

## Checking the 10% requirement

The net change column is where you assess whether the mandatory 10% biodiversity net gain has been met. This is calculated independently for each habitat category - area habitats, hedgerows, and watercourses must each meet the 10% threshold on their own.

## On-site, off-site, and combined tables

What you see depends on the metric type:

- **Small Sites Metric** - shows on-site tables only
- **Main Metric** - shows on-site tables, off-site tables, and combined tables

For applications using the Main Metric, the **combined table** is the key reference point. This is where you confirm whether the overall 10% net gain requirement has been achieved across on-site and off-site provision together.

## Alert triangles

You may see alert triangles next to some headline figures. These indicate that the numbers shown may not include all records - for example, where habitat records are incomplete or certain entries have been excluded from the calculation. Hover over the triangle for more detail.

## Where it fits in the workflow

The Summary Tables are Level 2 of the Assessment workflow. Review them after clearing any Metric Errors (Level 1) and before moving into detailed habitat-level assessment. They give you the big picture - whether the headline numbers stack up - so you know where to focus your detailed review.

- [Getting started](https://support.verna.earth/mycelia-support/getting-started?hsLang=en-gb#main-content)

    - [Making modifications](https://support.verna.earth/mycelia-support/getting-started?hsLang=en-gb#making-modifications)
- [New Mycelia Layout](https://support.verna.earth/mycelia-support/new-mycelia-layout?hsLang=en-gb)
- [Validation](https://support.verna.earth/mycelia-support/validation?hsLang=en-gb)
- [Assessment](https://support.verna.earth/mycelia-support/assessment?hsLang=en-gb)
- [Ecology Risks](https://support.verna.earth/mycelia-support/ecology-risks?hsLang=en-gb)
- [Monitoring](https://support.verna.earth/mycelia-support/monitoring?hsLang=en-gb)
- [Reporting](https://support.verna.earth/mycelia-support/reporting?hsLang=en-gb)

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