#accountancy

If you're a CA student, you've calculated ROE, ROCE, and Debt-to-Equity dozens of times in exams. You know the formulas cold. But here's the uncomfortable truth: knowing the formula and knowing what the number is actually telling you are two completely different skills.

Textbooks teach you how to calculate a ratio. They rarely teach you when that ratio is lying to you, or which one actually matters for the business in front of you. That gap is exactly where most new investors — and even some finance professionals — go wrong.

The Textbook Trap: Treating Every Ratio Equally

Most study material lists 15–20 ratios and expects you to calculate all of them for every company. In practice, professional analysts don't work this way.

Different businesses need different lenses:

A bank's Debt-to-Equity ratio means nothing — leverage is the business model

A software company's P/B ratio is close to meaningless — its real assets are people and code, not machinery

An FMCG company's inventory days matter more than its D/E ratio

Applying the same ratio checklist to every sector is the single biggest mistake CA students make when they move from textbook problems to real stock analysis.

ROE vs ROCE: The Ratio Textbooks Undersell

Every commerce student knows ROE. Far fewer actually use ROCE (Return on Capital Employed) as the primary filter — and that's a mistake.

Here's why it matters: ROE can be inflated by debt. A company can boost its ROE simply by borrowing more, even if the underlying business isn't getting any better. ROCE looks at profit generated on both equity and debt combined, which makes it much harder to fake.

Real-world logic: If a company borrows at 10% interest but its ROCE is only 8%, it's destroying shareholder value with every new loan — even if net profit is rising and ROE looks healthy. This single check catches a problem that ROE alone will completely miss.

The Ratio Nobody Teaches You to Watch: Cash Conversion Cycle

CA curriculum covers working capital in detail, but rarely frames it as a stock-picking tool. The Cash Conversion Cycle (Inventory Days + Receivable Days − Payable Days) tells you how long a company's cash is stuck before it comes back in the door.

A rising cash conversion cycle over 2–3 years is often an early warning sign — sales may be growing, but the company is quietly funding its customers' working capital, which shows up as stress much later on the balance sheet. This is one reason two companies with identical revenue growth can have completely different investment outcomes.

Interest Coverage Ratio: Small Line, Big Signal

Interest Coverage Ratio (EBIT ÷ Interest Expense) rarely gets attention in classroom teaching, but it's one of the fastest ways to spot financial stress before it becomes a headline. A ratio below 1.5–2x means a company is barely covering its interest obligations from operating profit — a red flag long before any credit rating downgrade makes the news.

Context Beats the Formula Every Time

The real skill professional analysts build isn't memorising more ratios — it's knowing:

Which ratio matters for this specific sector

What a "good" number looks like for that industry, not in general

How to read 2–3 ratios together, since no single number tells the full story

A P/E of 40 looks expensive in isolation. Next to a consistently rising ROCE and strong cash flows, it can be entirely justified. A P/E of 10 looks cheap — until you check that ROCE has been falling for three years straight.

Where This Skill Is Actually Built

This is exactly the kind of judgment that CA textbooks and generic YouTube videos don't build — because it only comes from applying these ratios to real, messy, listed Indian companies, again and again, with feedback on where your reading went wrong.

That's the foundation of the Master Blaster Finance Community, founded by CA Tushar Makkar — practical ratio and case-study analysis on real Indian businesses, not textbook problems. If you're a CA student or commerce professional looking to build this skill properly, membership starts at ₹199/month.

The Bottom Line

A new school year or a new semester gives an opportunity for a fresh new start. This post provides a guide to help you take intentional steps to regain your focus and motivation for the upcoming semester.

Creating folders for each class or subject 

At the start of every semester, what I would first do is to create a folder for each class, then further add subfolders consisting of Activities, Notes, and Other Materials. The Activities folder contains all my deliverables. As for the Notes folder, this consists of notes that I made for the specific class/subject, and all the other files given by my professors. Lastly, the Other Materials folders are for the files I gathered from online sources.

Through this, I remain organized, and each class or subject remains separate, and nothing overlaps. It also helps me to find easily what I need when I’m studying or doing a requirement.

Saving a backup of the files online

This step is a must for me. I back up the files on my laptop to a cloud storage, preferably to Google Drive. This helps me to ensure that if ever my laptop gets damaged, I can still access my old files. You may also use a hard drive or flash drive if cloud storage is less convenient on your end.

Clean my study desk

I actually do this every day before each study session because a clean work desk is a non-negotiable for me. This just makes learning more conducive since my mind gets haywire when my desk is messy, or there’s a lot of stuff on it.

Keep track of what I have and what I need

This is connected to the previous step. When I clean my desk, as well as my bookshelf and cabinets, I am bound to organize my stuff and keep track of the things that I still have. This step ensures that I don’t buy unnecessary stuff before the start of the semester, and I will only be buying what I truly need. For instance, I kept buying pens and notebooks in the past without knowing that I still have unused ones in my cabinet.

Buy books or codals

I like to buy books in advance so I can also study in advance.

Back when I was still in my undergraduate program, I bought the books that I needed before the start of classes. But this step also requires that our professors or seniors have already informed us of the books needed for each class. Otherwise, if there’s no announcement yet of the books needed, I will not be buying anything because I don’t want to waste money on books that are not required.

Now in law school, I like to buy the codals that I will be needing for the semester before the start of the class. As for books, I wait for our professors’ announcement first to make sure I will be buying the correct one because books are hella expensive too.

• . ݁₊ ⊹ . ݁꒰ঌ·✦·໒꒱ ݁ . ⊹ ₊ ݁. •

An academic reset is not about being the perfect student; it’s about making small and consistent steps to support your goals and dreams. As you begin the new semester, focus on your progress and celebrate small wins that you make along the way. That’s all for today, and happy studying!

Let’s stay connected:

ask me anything: https://revospring.net/@aestrophilia

email: [email protected]

 LISBURN-based Exchange Accountants is in ‘good health’ after expanding its operations with the acquisition of specialist medical accountancy practice MedFinancial. Retaining the MedFinancial name but now operating as a limited company, MedFinancial Accountants Ltd provides accountancy, taxation and business advice tailored to meet the needs of all sectors of the medical profession from…