Pourcentages 🚀 Calculer des hausses et baisses en % 💥 SANS calculatrice 💪 Brevet Bac ♕

📘 Calculate Percentages Without a Calculator! 💪 In this video, you'll learn how to calculate percentage increases and decreases without a calculator 🚀 👉 The trick is to use simple percentages (10%, 5%, 1%, etc.) to perform calculations quickly and accurately. 🎯 Step-by-step examples: ✏️ A €30 pen with a 20% price increase 👜 A €45 bag with a 20% price decrease 💍 A piece of jewelry costing €1,500 with a 3% price increase 📖 A €80 book with a 15% price increase 👨‍🎓 This video is ideal for middle school, high school, and anyone who wants to easily understand percentages. 💡 Watch until the end to master percentage increases and decreases without a calculator!