Christoph Kay
Christoph worked as an electronics technician in industry for five years and experienced firsthand how missing small parts can slow down processes. Later, as a project manager at P.S. Cooperation GmbH (Böllhoff Group), he introduced digital procurement processes for recurring parts at medium-sized companies and corporations. Today, he is building repleno to largely automate the procurement of consumables in small businesses.
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How to Calculate Warehouse Costs: Formula, Example and Storage Cost Rate
Calculate warehouse costs with a clear formula, a euro example and the storage cost rate. Step-by-step for SMEs with an interactive calculator and typical values.
Inventory Management: What It Is, How It Works, and When Excel Falls Short
Inventory management explained: definition, core tasks, methods and an honest comparison of Excel vs. dedicated software. For small businesses that want to stay in control.
Minimum Stock: Formula, Variants and Practical Example
Calculate minimum stock with three formulas, step-by-step examples and a clear distinction from safety stock, for stable, fluctuating and seasonal items.
Inventory Metrics in the Trades: 4 Numbers That Make Stock and Costs Visible
Inventory metrics in the trades: Inventory turnover, storage duration, storage cost rate, and stockout rate explained. With formulas, benchmarks, and a calculation example.
Stocktaking for Trade Businesses: Checklist, Process and GoBD Guidance from the Field
Stocktaking guide for trade businesses: process fixes for stock discrepancies, practical count sheets and GoBD tips so your target and actual figures finally align.
Hourly Wage for Tradespeople in Germany 2026
Gross hourly wages for tradespeople in Germany 2026: tariff wages by trade, minimum wage, master vs. journeyman, separate from customer rates.
