Subchapter 168.1

Details

references/details.mdMarkdown3 KBView on GitHub

startup-financial-modeling — detailed sections

Step-by-Step Process

Workflow Orchestration Patterns

Nx Workspace Patterns

SQL Optimization Patterns

Turborepo Caching

Trace To Training Data

Vision Sft

Packaging

Performance Optimization

Web Component Design

Step 1: Define Business Model

Clarify revenue model and pricing.

SaaS Model:

Subscription pricing tiers
Annual vs. monthly contracts
Free trial or freemium approach
Expansion revenue strategy

Marketplace Model:

GMV projections
Take rate (% of transactions)
Buyer and seller economics
Transaction frequency

Transactional Model:

Transaction volume
Revenue per transaction
Frequency and seasonality

Step 2: Build Revenue Projections

Use cohort-based methodology for accuracy.

Monthly Customer Acquisition: Define new customers acquired each month.

Retention Curve: Model customer retention over time.

Typical SaaS Retention:

Month 1: 100%
Month 3: 90%
Month 6: 85%
Month 12: 75%
Month 24: 70%

Revenue Calculation: For each cohort, calculate retained customers × ARPU for each month.

Step 3: Model Cost Structure

Break down costs by category and behavior.

Fixed vs. Variable:

Fixed: Salaries, software, rent
Variable: Hosting, payment processing, support

Scaling Assumptions:

COGS as % of revenue
S&M as % of revenue (CAC payback)
R&D growth rate
G&A as % of total expenses

Step 4: Create Hiring Plan

Model headcount growth by role and department.

Inputs:

Starting headcount
Hiring velocity by role
Fully-loaded compensation by role
Benefits and taxes (typically 1.3-1.4x salary)

Example:

Engineer: $150K salary × 1.35 = $202K fully-loaded
Sales Rep: $100K OTE × 1.30 = $130K fully-loaded

Step 5: Project Cash Flow

Calculate monthly cash position and runway.

Monthly Cash Flow:

Beginning Cash
+ Revenue Collected (consider payment terms)
- Operating Expenses Paid
- CapEx
= Ending Cash

Runway Calculation:

If Ending Cash < 0:
  Funding Need = Negative Cash Balance
  Runway = 0
Else:
  Runway = Ending Cash / Average Monthly Burn

Step 6: Calculate Key Metrics

Track metrics that matter for stage.

Revenue Metrics:

MRR / ARR
Growth rate (MoM, YoY)
Revenue by segment or cohort

Unit Economics:

CAC (Customer Acquisition Cost)
LTV (Lifetime Value)
CAC Payback Period
LTV / CAC Ratio

Efficiency Metrics:

Burn multiple (Net Burn / Net New ARR)
Magic number (Net New ARR / S&M Spend)
Rule of 40 (Growth % + Profit Margin %)

Cash Metrics:

Monthly burn rate
Runway (months)
Cash efficiency

Step 7: Scenario Analysis

Create three scenarios with different assumptions.

Variable Assumptions:

Customer acquisition rate (±30%)
Churn rate (±20%)
Average contract value (±15%)
CAC (±25%)

Fixed Assumptions:

Pricing structure
Core operating expenses
Hiring plan (adjust timing, not roles)

Raw file

wshobson/agents