How do I write measurable achievements in my CV?

With numbers, percentages and concrete results: 'Increased revenue by 23%' instead of 'increased revenue'. 'Led a team of 8 people' instead of 'team leadership'. 'Completed a project with a EUR 150k budget' instead of 'project responsibility'. If you can't cite exact figures, use approximations: 'approx. 200 customer contacts per month'. Each career position should have at least 2-3 quantifiable results.