Kefiw

Archived noindex page. Kefiw's public focus is Property decision help.

Archived page

This older Kefiw page is kept for reference, marked noindex, and removed from the primary sitemap. The current Kefiw experience is focused on property decisions: cost, quotes, damage, buying, selling, owning, and packets.

Go to Property

Break-Even Analysis: Decide Go or No-Go

Units to break even, payback months, and when the math says walk away.

Turn a gut decision into a number with a threshold.

Break-even tells you the point where a decision stops losing money. It is not profitability — it is survival. If you cannot see a clean path to break-even, the answer is usually no.

Quick answer

Turn a gut decision into a number with a threshold.

What you are trying to do
Units to break even, payback months, and when the math says walk away.
Best next step
Break-Even Calculator
Limit to remember
Treat this as a practical aid for the task, not a replacement for professional judgment.

Key points

  • ▸ Business mode: break-even units = fixed costs / (price per unit - variable cost per unit). Tells you how many to sell to cover fixed costs.
  • ▸ Decision mode: payback months = upfront cost / monthly savings. Tells you when an investment recoups its cost.
  • ▸ Red flag: if break-even volume exceeds 70% of realistic market capacity, the plan is fragile.
  • ▸ Red flag: if payback > 7 years on equipment with a 10-year life, opportunity cost of capital usually kills the deal.
  • ▸ Always run a "20% worse" scenario: price drops 10%, volume drops 10%. If break-even still clears, the decision is robust.

Examples

  • Coffee shop break-even
    Fixed cost $12k/mo (rent, salaries, utilities). Contribution margin per coffee = $4 price - $1.20 cost = $2.80. Break-even = 12000 / 2.80 = 4,286 coffees/mo, or ~143/day.
  • Solar panel payback
    System cost: $18,000 after credits. Monthly electric savings: $120. Payback = 18000 / 120 = 150 months = 12.5 years. If panels last 25 years, good deal. If you move in 5, bad deal.
  • New hire break-even
    Salesperson: $80k salary + $20k overhead = $100k/yr. Commission 10%, margin 40%. Break-even revenue = 100000 / (0.40 - 0.10) = $333k/yr new revenue. Realistic?

When to use which tool

Related

Frequently asked questions

› What counts as "fixed" vs "variable" cost? Comparison

Fixed does not change with volume (rent, salaries, insurance). Variable scales with each unit (materials, commissions, shipping). Some are mixed — split them.

› Is break-even the same as profitability? Trust & accuracy

No. Break-even is zero loss; profitability is meaningful return on capital. A business breaking even on operating expense but not recovering owner time is still losing.

› How should I use a decision framework in real life? How-to

Use a decision framework to expose the tradeoff, not to outsource the decision. Write down the inputs, compare the output with your constraints, then ask what would change the answer. The strongest use is scenario testing: base case, conservative case, and failure case.

› Is this financial, legal, or tax advice? Trust & accuracy

No, this is not legal, financial, tax, medical, or professional advice unless the page explicitly says that use case is supported. It organizes assumptions so you can inspect them. Verify high-stakes choices with qualified people who can review facts, contracts, regulations, and downside risk.

› What assumption matters most in a decision model? Edge case

The most important assumption is usually the one you are least certain about and most emotionally attached to. Change that input first. If the recommendation flips after a small change, the decision is fragile and needs more evidence before you treat the model as useful.