149 guides · english & português
Running the business in one language, the paperwork in the other.
SeyT Lines is a working reference for people who run something small. The English side is about operating it — marketing, cash flow, hiring, customers. The Portuguese side is almost entirely the legal ground underneath: contracts, company registration, trademarks, liability.
EN 129 guides
Running it
Operating the business: pricing and cash flow, marketing and local search, hiring, customers, and surviving a bad quarter.
PT 20 guias
A papelada
A base jurídica: contratos, registro de empresa, marcas e patentes, responsabilidade limitada, compliance.
Counted from the posts themselves — EN: 129 posts, 116 of them in Business; PT: 20 posts, 5 of them in Lei Trabalhista.
Latest guides
EnglishHow to create engaging social media content for your business
BusinessThe importance of a crisis management plan for small businesses
BusinessStrategies for managing seasonal fluctuations in business
BusinessUnderstanding Workplace Discrimination Laws
Employment LawHow to use customer testimonials effectively
BusinessThe impact of good packaging design on product sales
BusinessStrategies for effective customer relationship management (CRM)
BusinessThe importance of a well-designed business card
BusinessHow to create a successful referral program
BusinessFree · runs in your browser
How many do you have to sell before you start earning?
Most of the guides on the English side circle the same sum without ever writing it down: fixed costs divided by what each sale actually contributes.
- Contribution per unit, and the units you need to cover fixed costs
- The revenue that break-even represents
- Profit or loss at a sales volume you choose
- Nothing is uploaded; the arithmetic runs on your device
Break-even
Contribution / unit—
Break-even, units—
At that volume—