Adds 35% markup to costs, Adds 18% VAT, and gives you what you should quote. Sidenote: I actually created this to solve a problem I run into frequently in my business and work, hope it helps you as well

The Long-Term Investment Tracker helps you record yearly investments, profits, and portfolio value, showing both tables and charts. All data is saved locally on your device for privacy and control, with no cloud storage or accounts required—simple, secure, and efficient tracking of your investment journey.