Is anything I type sent to a server?

Nothing you type is sent anywhere.

Which languages does Orlin speak?

Twenty languages. Use the language name at the top to switch. Each language has the same forty tools.

Margin and markup from cost and price.

Cost 60, price 100: margin 40%.

CostPrice

Margin

40%

Markup

66.67%

What does Margin do?: Margin and markup from cost and price.
Example: Cost 60, price 100: margin 40%.
Is anything I type sent to a server?: Nothing you type is sent anywhere.
Which languages does Orlin speak?: Twenty languages. Use the language name at the top to switch. Each language has the same forty tools.