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My name is David! Thank you for visiting me. Please discover the blog and I think you can learn a lot here.

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Project Documentation: Strategic Fp&A & Operational Performance Model (Education Sector)December 11, 2025
1. EXECUTIVE SUMMARY 1.1 Project Overview This project establishes a robust financial framework to evaluate the educational center’s performance across three critical pillars: Commercial Efficiency (Marketing), Operational Excellence (Capacity & Teachers), and Financial Health (P&L & Liquidity). 1.2 Key Findings 1.3 Strategic Recommendations The objectiveContinue reading “Project Documentation: Strategic Fp&A & Operational Performance Model (Education Sector)”
[Tony Boobier] – AI and the Future of BankingNovember 14, 2025
Chapter 1 Prologue: Why Banking? What is Banking? 4 Types of bank Key Banking Functions 10 The generic functions found in all these types of bank comprise: Future Jobs in Banking 14 HSBC specifically indeitified fice digital jobs for the furure: To supplement the list,Continue reading “[Tony Boobier] – AI and the Future of Banking”
One-Way Analysis of Variance (ANOVA)October 27, 2025
What should we do when we have more than two groups and we want to determine if there is a signiﬁcant difference between the means of these groups?Chúng ta nên làm gì khi có nhiều hơn hai nhóm và chúng ta muốn xác định rằngContinue reading “One-Way Analysis of Variance (ANOVA)”
[Book Excerpts] Takaharu Yasumto – Tư duy kế toán phải có trong kinh doanhSeptember 17, 2025
Cuốn sách “Tư duy kế toán phải có trong kinh doanh” của Takaharu Yasumoto tập trung vào việc giúp người đọc phát triển tư duy kế toán thiết yếu để áp dụng trong quản lý doanh nghiệp và kinh doanh. Nội dung chính của sáchContinue reading “[Book Excerpts] Takaharu Yasumto – Tư duy kế toán phải có trong kinh doanh”
[Excel] FILTER formula – Limitations and UtilizationAugust 20, 2025
Bài viết hôm nay mình sẽ hướng dẫn các bạn cách sử dụng hàm FILTER trong Excel. Mình cũng sẽ nói về hạn chế của hàm này, cách kết hợp với các hàm khác để phát huy sức mạnh của FILTER.In today’s article, I willContinue reading “[Excel] FILTER formula – Limitations and Utilization”
Fundamentals of Corporate FinanceJuly 12, 2025
Part 1: Overview of Corporate Finance CHAPTER 1: INTRODUCTION TO CORPORATE FINANCE 1.1. Finance: A Quick Look Finance: Five main areas 1. Corporate finance2. Investments3. Financial institutions4. International finance5. Fintech 1.2. Corporate Finance and Financial Managment What is Corporate Finance? 1. What long-term investments shouldContinue reading “Fundamentals of Corporate Finance”
[Book Excerpt] Phil Town – Payback TimeJuly 8, 2025
CHAPTER 1: HOW THE WEALTHY USE DOWN TO GO UP? The list of billionaires who used a strategy which call “stockpiling” to become mega-wealthy goes on and on but wouldn’t be complete without mentioning that the world’s second wealthiest man, Warren Buffett (worth $37 billion),Continue reading “[Book Excerpt] Phil Town – Payback Time”
[Excel] Create Time Dropdown MenuMay 28, 2025
In this post, I will guide you to do a time dropdown selection in Excel.Bài viết này mình sẽ hướng dẫn các bạn tạo danh sách chọn thời gian trong Excel. Sample We usually see two time dropdown menus including “From/Start Time” and “To/End Time”Continue reading “[Excel] Create Time Dropdown Menu”
Strategic ManagementMay 18, 2025
PART ONE: INTRODUCTION TO STRATEGIC MANAGEMENT Chapter 1. Strategic Leadership:Managing the Strategy-Making Process for Competitive Advantage Learning Outcomes: 1.1 Overview A strategy is a set of related actions that managers take to attain a goal. If a company’s strategies result in superior performance, it isContinue reading “Strategic Management”
[Excel] Using INTERCEPT to calculate payback periodFebruary 20, 2025
Khoảng thời gian thu hồi vốn là gì?What Is a Payback Period? Kỳ thu hồi vốn là khoảng thời gian (thường tính bằng năm) cần thiết để thu hồi nguồn vốn ban đầu – được đo lường bằng dòng tiền sau thuế. Ví dụ, nếuContinue reading “[Excel] Using INTERCEPT to calculate payback period”
[Excel] Mean Calculation TechniquesFebruary 17, 2025
1. Arithmetic Mean – Trung bình cộng toán học AVERAGE: tổng các giá trị chia cho số các số. Có thể sử dụng cách tính tương đương: =SUM(A2:A11)/COUNT(A2:A11) 2. Trimmed Mean – Giá trị bình quân sau khi đã loại bỏ đi x% outliers (cácContinue reading “[Excel] Mean Calculation Techniques”
[Book Extracts] Eric Barker – Barking Up The Wrong TreeJanuary 26, 2025
Chapter 1 • Should We Play It Safe and Do What We’re Told If We Want to Succeed?Có nên thận trọng và vâng lời nếu muốn thành công? Does Playing by the Rules Pay Off? Insight from Valedictorians, People Who Feel No Pain, and PianoContinue reading “[Book Extracts] Eric Barker – Barking Up The Wrong Tree”
[Book Extracts] Killjoys – The Seven Deadly SinsJanuary 8, 2025
A BRIEF HISTORY OF INIQUITY These sins—pride, envy, anger, greed, sloth, gluttony, and lust—are not considered the deadliest but are viewed as root-level sins from which others stem. This classification helps address sin at its source rather than merely its symptoms, fostering deeper spiritual growth.Continue reading “[Book Extracts] Killjoys – The Seven Deadly Sins”
[Word] Switch between Simplified Chinese and Traditional ChineseDecember 27, 2024
This post is to guide everyone how to type Chinese in Microsoft Word and also navigate you guys through Simplified and Traditional Chinese switch.Bài viết này mình hướng dẫn các bạn cách gõ tiếng Trung trong Word và làm sao để chuyển đổi giữa tiếngContinue reading “[Word] Switch between Simplified Chinese and Traditional Chinese”
[Book Extracts] [Mihaly Csikszentmihalyi] – Flow: The Psychology of Optimal ExperienceDecember 27, 2024
1. HAPPINESS REVISITED Introduction Aristotle observed 2,300 years ago that happiness is the ultimate human pursuit, valued for its own sake, while other goals—health, wealth, power—are sought as means to that end. Yet despite humanity’s immense scientific and technological progress, our understanding of happiness hasContinue reading “[Book Extracts] [Mihaly Csikszentmihalyi] – Flow: The Psychology of Optimal Experience”
Credit Risk Modeling in PythonNovember 21, 2024
Theoretical Foundation What is credit risk and why is it important? The likelihood that a borrower would not repay their loan to the lender ➔ the lenders will not receive their owned principle, moreover, they wouldn’t be paid the interest and will therefore suffer aContinue reading “Credit Risk Modeling in Python”
[Book Extracts] Jason Barron – The Visual MBA: A Quick Guide to Everything You’ll Learn in Two Years of Business SchoolNovember 10, 2024
CHAPTER ONE: Leadership Leadership is more than management. It’s about inspiring change and improving results through who you are and how you motivate others. What is your leadership brand? 1) Nail down the results you want to achieve over the next 12 monthsMake sure toContinue reading “[Book Extracts] Jason Barron – The Visual MBA: A Quick Guide to Everything You’ll Learn in Two Years of Business School”
[Book Extracts] 姜巍 Khương Nguỵ – 行为心理学 Tâm Lý Học Hành ViOctober 8, 2024
第一章：行为心理学 – 从行为探索心里的源头Chương 1: Tâm lý học hành vi – Nguồn gốc của phương pháp tìm hiểu tâm lý từ hành vi 刺激与反应：翻出十万八千里也逃不出反射弧的掌控Kích thích và phản ứng: Sự kiểm soát của cung phản xạ có chạy mười vạn tám ngàn dặm cũng không thoát 每个人的行为,其实都被一只看不见的手所控制,这就是人Continue reading “[Book Extracts] 姜巍 Khương Nguỵ – 行为心理学 Tâm Lý Học Hành Vi”
[Book Review] Nguyễn Anh Dũng – Tư Duy NgượcAugust 2, 2024
Điểm Mạnh Điểm Hạn Chế Kết Luận “Tư Duy Ngược” của Nguyễn Anh Dũng là một cuốn sách hữu ích và thú vị cho những ai muốn khám phá và thay đổi cách tư duy của mình để đạt được thành công. Dù còn mộtContinue reading “[Book Review] Nguyễn Anh Dũng – Tư Duy Ngược”
[Book Review] Scott Patterson – Chaos Kings: How Wall Street Traders Make Billions in the New Age of CrisisJuly 31, 2024
Chaos Kings: How Wall Street Traders Make Billions in the New Age of Crisis” by Scott Patterson is an engrossing and detailed examination of how a select group of financial traders profit from crises. Patterson, leveraging his extensive experience as a Wall Street Journal reporter,Continue reading “[Book Review] Scott Patterson – Chaos Kings: How Wall Street Traders Make Billions in the New Age of Crisis”
[Book Extracts] Chris Anderson – The Long TailJuly 2, 2024
1. The Long Tail – How Tecnhnology Is Turning Mass Markets Into Millions of Niches This chapter introduces the concept of how technology is reshaping the entertainment and media industries by transforming mass markets into millions of niches. Here are the key points summarized: ExampleContinue reading “[Book Extracts] Chris Anderson – The Long Tail”
[Excel] Business ForecastingMay 31, 2024
This post is to summarizes the knowledge gained from the “Excel Skills for Business Forecasting Specialization” course on Coursera, which includes three courses:Bài viết này mình tổng hợp lại kiến thức mình đã học được từ khóa học Excel Skills for Business Forecasting Specialization trênContinue reading “[Excel] Business Forecasting”
[Book Extracts] Lý Lâm Duy – Ứng Dụng Phân Tích Báo Cáo Tài Chính và Định Giá Doanh Nghiệp Trong Thực TiễnMay 14, 2024
PHẦN 1: PHÂN TÍCH BÁO CÁO TÀI CHÍNH Chương 1: TẦM NHÌN, CHIẾN LƯỢC, MÔ HÌNH KINH DOANH VÀ QUẢN TRỊ Hiểu về tầm nhìn, chiến lược, và mô hình kinh doanh Tầm nhìn của một công ty thường là về một viễn cảnh, hoặcContinue reading “[Book Extracts] Lý Lâm Duy – Ứng Dụng Phân Tích Báo Cáo Tài Chính và Định Giá Doanh Nghiệp Trong Thực Tiễn”
Service MarketingMay 1, 2024
PART I: UNDERSTANDING SERVICE PRODUCTS, CONSUMERS, AND MARKETS Creating Value in the Service Economy Why Study Service? Services Dominate the Global Economy The size of the service sector is increasing in almost all countries around the world. As an economy develops, the relative share ofContinue reading “Service Marketing”
[Book Extracts] James Rickards – Currency WarsApril 3, 2024
Part Two: Currency Wars Reflections on a Golden Age At the heart of every currency war is a paradox. While currency wars are fought internationally, they are driven by domestic distress. Currency wars begin in an atmosphere of insufficient internal growth. The country that startsContinue reading “[Book Extracts] James Rickards – Currency Wars”
[Word] Paragraph Mark – All you need to knowMarch 27, 2024
This post is introduce you all about Paragraph Mark (¶). A paragraph mark (¶) in Microsoft Word is a symbol that serves two important purposes:Paragraph mark là một ký tự trong Word có hai chức năng quan trọng nhất gồm: Display and Hide Paragraph MarksContinue reading “[Word] Paragraph Mark – All you need to know”
[Office] Check CompatibilityMarch 9, 2024
Check Compatibility is a feature available in Microsoft Office applications that helps users ensure that their documents, presentations, or spreadsheets are compatible with different versions of Office software. This feature is particularly useful when sharing files with others who may be using different versions ofContinue reading “[Office] Check Compatibility”
[Office] Embed Fonts In This FileMarch 6, 2024
Hello! This post is to introduction to you about Embed Fonts in Office documents.Bài viết này mình giới thiệu với các bạn về tính năng Embed Fonts trên tài liệu của Office. When you receive a PowerPoint presentation from other people, and the fonts includedContinue reading “[Office] Embed Fonts In This File”
[Power BI] SELECTCOLUMNS and ADDCOLUMNS in DAXFebruary 10, 2024
Both ADDCOLUMNS and SELECTCOLUMNS are DAX functions used to add or manipulate columns within a table expression. However, they have different purposes and behavior.Cả ADDCOLUMNS và SELECTCOLUMNS đều trả về kết quả là một bảng. Tuy nhiên, chúng có một vài đặc điểm và cáchContinue reading “[Power BI] SELECTCOLUMNS and ADDCOLUMNS in DAX”
[Power BI] KEEPFILTERS in DAXFebruary 5, 2024
This post is to guide you meticulously use KEEPFILTERS in Power BI – a formula in Filter group.Bài viết này mình hướng dẫn các sử dụng hàm KEEPFILTERS trong Power BI – một hàm thuộc nhóm Filter. We have two tables (Product and Sales) connectedContinue reading “[Power BI] KEEPFILTERS in DAX”

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