
Startup Cost & Break-even
Break-even units per month — how many sales a month cover every fixed cost — including paying yourself.
What the file tells you every week
Before you sign the lease: how many sales a month keep the doors open, how many months you survive if nobody comes, and what changes if you charge 10% more. Three questions, one sheet, answered before the money is spent.
Anyone opening a shop, café, studio, service or online store in the next twelve months.

Excel 2016+ or Microsoft 365. Or upload the .xlsx to Google Drive — it opens in Sheets with formulas and charts intact.
Yes — BLIK, Przelewy24, any card, Apple Pay, Google Pay and PayPal. Prices in PLN, EUR, USD or GBP; the currency switch is at the top.
Tick “I’m purchasing as a business” at checkout and enter your NIP / VAT ID. The invoice arrives with the download e-mail.
14-day refund, no questions. One e-mail to hello@tintedcells.com.