# Costing & Pricing Workspace

From spreadsheet to decision tool.

- Author: [Konstantinos Toulis](https://ktoulis.com/#about)
- Role: Business Technology & AI Solutions Architect
- Category: Data & decisions
- Project type: Business application / MVP
- Canonical page: https://ktoulis.com/work/costing-workspace.html

## Overview

A dedicated costing and pricing workspace built around the business logic previously held in spreadsheets.

## The business challenge

Make costing imports, pricing comparisons and margin reviews consistent and easier to inspect.

## The connected solution

Validated Excel imports feed a dedicated costing application, with pricing comparisons and exception reports. Decimal arithmetic and structured data keep calculation logic explicit.

## The workflow

1. Import Excel
2. Validate inputs
3. Compare costs
4. Review exceptions

The workflow is an illustration. Project scope and limitations are described below.

## Built with / focus areas

- Next.js
- TypeScript
- PostgreSQL
- Prisma
- ExcelJS
- Decimal.js

## Focus

- Costing & pricing
- Excel workflows
- Margin analysis

## Scope and disclosure

Excel-first MVP. No commercial performance figures are claimed.

## Contact

[Discuss a similar project by email](mailto:kt@ktoulis.com).

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