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Internal Rate of Return (IRR)

The Internal Rate of Return is to find the actual annual rate of return on the investment, calculating the point where the net present value (NPV) is equal to zero. The easiest way is to use the function = IRR (data range) in Excel. 😎💚# excelsoezy # Excel # Exceltricks # exceltips # Lemon 8 Howtoo

1 week agoEdited to

... Read moreสำหรับผู้ที่เริ่มต้นใช้งาน IRR ใน Excel การทำความเข้าใจหลักการพื้นฐานของ IRR ถือเป็นสิ่งสำคัญ เพราะ IRR คืออัตราผลตอบแทนที่แท้จริงของการลงทุนในแต่ละปีที่ทำให้นำเงินสดที่คาดว่าจะได้รับในอนาคตมาคำนวณมูลค่าปัจจุบันแล้วได้ผลรวมเป็นศูนย์ ซึ่งหมายความว่าการลงทุนนี้สามารถคืนทุนและมีผลตอบแทนตามอัตรานั้น ในการใช้งานจริง ฟังก์ชัน =IRR() ของ Excel นั้นสะดวกมากโดยที่คุณเพียงใส่ช่วงข้อมูลของกระแสเงินสดลงไป ฟังก์ชันจะคำนวณอัตราผลตอบแทนที่เหมาะสมให้ทันที ตัวอย่างเช่น ถ้าคุณมีเงินลงทุนเริ่มต้นติดลบและคาดว่าจะได้รับรายรับในแต่ละปีจนถึงปีที่ 3 ก็ให้กรอกข้อมูลช่วงเซลล์ที่ประกอบด้วยกระแสเงินสดแต่ละปีลงไป แล้วใช้สูตร =IRR(ช่วงข้อมูล) สิ่งที่ควรระวังคือกระแสเงินสดต้องมีค่าเป็นบวกและลบสลับกันอย่างน้อยหนึ่งครั้งเพื่อให้ฟังก์ชัน IRR คำนวณได้ถูกต้อง นอกจากนี้ คุณสามารถกำหนดค่าเดาเริ่มต้น (guess) เพื่อช่วยให้ Excel ประมวลผล IRR ได้รวดเร็วขึ้น โดยใส่เป็นอาร์กิวเมนต์ที่สอง เช่น =IRR(ช่วงข้อมูล, 0.1) ซึ่ง 0.1 หมายถึง 10% นอกจากนี้ หากต้องการคำนวณ IRR สำหรับกรณีที่ซับซ้อนขึ้น เช่น มีหลายช่วงเวลาของเงินลงทุน หรืออยากหาค่า IRR ที่สอดคล้องกับเงื่อนไขอื่นๆ คุณยังสามารถใช้เครื่องมือ Solver ใน Excel เพื่อทำการหาค่าที่ทำให้ NPV เท่ากับศูนย์โดยตรง วิธีนี้เหมาะสำหรับกรณีที่ฟังก์ชัน IRR ปกติไม่สามารถใช้งานได้ หรือข้อมูลมีความซับซ้อนมากขึ้น จากประสบการณ์ส่วนตัว การเรียนรู้การใช้ IRR ผ่าน Excel ช่วยให้ผมสามารถประเมินโครงการลงทุนต่างๆ ได้อย่างแม่นยำและรวดเร็วขึ้นมาก ไม่ต้องคำนวณมือให้วุ่นวาย เพราะ Excel จะช่วยหาค่าอัตราผลตอบแทนที่เป็นจริงให้โดยอัตโนมัติ ทำให้สามารถตัดสินใจลงทุนหรือไม่ลงทุนได้อย่างมีข้อมูลรองรับ สำหรับคนที่สนใจ อย่าลืมลองทำตามตัวอย่างในบทความนี้โดยใช้ข้อมูลตัวเลขต่างๆ ใน Excel และทดลองปรับเปลี่ยนเพื่อสังเกตผลลัพธ์ IRR ที่เปลี่ยนไป การฝึกปฏิบัติโดยตรงนี่แหละที่จะทำให้เข้าใจวิธีการทำงานของ IRR อย่างแท้จริงและนำไปประยุกต์ใช้ในงานได้อย่างมั่นใจครับ

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