CAGRCompound Annual Growth Rate SIPSystematic Investment Plan PE RatioPrice-to-Earnings IRRInternal Rate of Return Rule of 72Doubling Time Shortcut XIRRExtended IRR ROEReturn on Equity NPVNet Present Value EBITDAEarnings Before Interest & Tax CAGRCompound Annual Growth Rate SIPSystematic Investment Plan PE RatioPrice-to-Earnings IRRInternal Rate of Return Rule of 72Doubling Time Shortcut XIRRExtended IRR ROEReturn on Equity NPVNet Present Value EBITDAEarnings Before Interest & Tax

Think Faster · Invest Smarter · Build Wealth

Think Faster Than
a Calculator.
Invest Smarter.

Battle-tested mental math shortcuts, estimation techniques, and investment calculation tricks — crunch real numbers in seconds, in your head, anywhere.

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Meet the Founder

The Mind Behind NumCipher Finance

Shrinivas Vasala

Shrinivas Vasala

Data Scientist & Analytics Professional
Quantitative Researcher

A lifelong believer that "math should simplify life — not complicate it," Shrinivas has spent years transforming complex financial data into actionable insights. His mission: make investment-grade mental math accessible to every investor, not just those with a finance degree.

🎓
M.Sc. Applied Statistics & Informatics — IIT Bombay One of India's most rigorous quantitative programs, shaping the analytical foundation behind every NumCipher technique.
📐
Academic Excellence in Mathematics Scored 99/100 in Mathematics — HSC Board — a foundation built on genuine love for numbers.
🧮
Master of Vedic Mathematics Deep practitioner of ancient Vedic math systems — applying sutras and mental computation techniques to modern investing.
💼
15+ Years in Data Science & Analytics Extensive experience across data science, analytics platforms, and real-world quantitative problem-solving in the technology industry.
By the Numbers

What NumCipher Finance Has Built

From daily reels to structured courses and published books — a growing ecosystem designed to make every investor sharper with numbers.

5+
Structured Video Courses on Udemy
3+
Books Published & Upcoming
10+
Social Platforms with Daily Reels
500+
Mental Math Tricks to Master
Who Is This For?

Built for Anyone Serious About Numbers

📈

Retail Investors

Evaluate stocks and funds faster without spreadsheets.

📊

Equity Analysts

Sanity-check valuations on the fly during pitches and calls.

🎓

CA / CFA / Management Students

Ace exams and case interviews with lightning-fast calculations.

🧮

Financial Planners

Give clients real-time estimates without opening a calculator.

💡

Market Enthusiasts

Level up number intuition to read the market better.

🚀

Anyone with Ambition

If you want to be sharper and more confident with numbers — you're in.

Video Courses

Learn at Your Own Pace

All courses hosted on Udemy — lifetime access, mobile-friendly, certificate on completion.

Course 1 · Udemy

Percentage Mastery: Multipliers, Recovery & More

Master the mental math of percentages — gain/loss multipliers, recovery calculations, and real-world investment shortcuts that change how you see every market move.

Enroll on Udemy →
Course 2 · Udemy

CAGR, Lump Sum & Compounding — Calculated Instantly

Crack CAGR in your head, estimate lump sum growth, and internalize the power of compounding with practical tricks you'll use every single week.

Enroll on Udemy →
Course 3 · Udemy

SIP, Lump Sum & Portfolio Recovery Math

Decode SIP returns, benchmark lump sum vs SIP outcomes, and calculate portfolio drawdown recovery — all using fast, head-based techniques.

Enroll on Udemy →
Course 4 · Coming Soon

Retire Rich, Spend Smart: Mental Math for Life's Biggest Money Decisions

From estimating your retirement corpus in 10 seconds to adjusting for inflation on the fly — this course covers the mental math behind retirement planning, inflation-adjusted returns, and instrument comparisons (Mutual Funds vs NPS vs FD) without a spreadsheet in sight.

🔔 Launching Soon
Books & Courses

Learn Your Way — Books, eBooks & Video Courses

Everything you need to master investment math — in print, digital, and video. Pick your format.

Books & eBooks

BOOKS & EBOOKS

Paperback
Paperback
eBook on Kindle
Kindle
🇮🇳 India
📱 eBook (Kindle) 📚 Paperback
🌐 US / Global
📱 eBook (Kindle) 📚 Paperback
Upcoming Book

PAISE FOOLS

😂 💸 🤦
🐂💸
Paise
Fools by Shrinivas Vasala
Coming Soon

A hilarious collection of real stories about Indian investors — their quirks, blunders, and surprisingly wise moments. Finance meets comedy.

🔔  Notify Me When Available
What You'll Learn

Core Investment Math Topics

Every topic is taught as a mental shortcut — not a formula to memorize, but a pattern to internalize so it works under pressure, in meetings, and on the go.

01
📐

Percentage Multipliers

Instantly convert % gain/loss to multipliers and back — no calculator needed.

02
📈

CAGR Estimation

Estimate compound growth rates in seconds using the Rule of 72 and beyond.

03
💰

SIP vs Lump Sum Returns

Quickly compare SIP and lump sum outcomes for any holding period.

04
📉

Portfolio Recovery Math

Calculate how much gain is needed after a % drawdown — instantly.

05
🔢

Valuation Ratios

Estimate PE, PB, and EV/EBITDA fast using simplified mental models.

06
⏳

Compounding & Time Value

Build intuition for how money grows over time — without a financial calculator.

07
🏖️

Retirement Calculation Shortcuts

Estimate your retirement corpus, withdrawal rate, and years-to-retire — in your head.

08
🏷️

Inflation & Cost of Living

Quickly adjust returns for inflation and understand real purchasing power over time.

09
💳

Debt Management

Calculate EMIs, total interest paid, and payoff timelines using fast mental shortcuts.

10
⚖️

Mutual Funds vs NPS vs FD

Quickly compare expected post-tax returns across instruments to make better choices.

Free Download

Get the Free Cheat Sheet

Sign up and we'll send you the Investor's Quick Math Cheat Sheet — a one-page PDF with the most-used mental math shortcuts for returns, CAGR, SIP, and more.

  • ✅ CAGR & Rule of 72 shortcuts
  • ✅ % gain/loss recovery table
  • ✅ SIP corpus quick-estimate formula
  • ✅ Inflation adjustment tricks
FREE PDF 📄

Investor's Quick Math
Cheat Sheet

Instant download · No spam ever

No spam. Unsubscribe anytime.

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Daily Reels & Shorts —
Free Mental Math on Every Platform

Get in Touch

Questions? Collaborations?
Say Hello.

For course inquiries, partnerships, media requests, or just to talk numbers — reach out directly.

✉  shrinivasdvasala@gmail.com