Reference
The same math as the calculators, written out so you can check it or cite it without running the page.
Floor = cost ÷ (1 − margin). $5 at 80% is $25, or $30.99 after a 2.9% + $0.30 fee.
$80,000 + 30% burden + $3,000 extras = $107,000 a year, $79.61 per focused hour.
$49 × 80% margin ÷ 4% churn = $980 LTV. Against $200 CAC that is 4.9∶1, paid back in 5.1 months.
London and New York share 14:00–18:00 UK time in mid-October. London, New York, and Manila share none.