Work out the tip on a bill in Iowa and the total per person when splitting.
The tip is the bill multiplied by the percentage you choose; the total adds the tip and the per-person share splits the total evenly. Tip norms vary by country and service type — adjust the percentage to match local practice.
Tip
Tip = bill × tip %
Guidance only — tipping norms vary.
Everywhere else except the US it depends on local norms; US table service typically runs 15–20%.
Rates are approximate reference values. Local rates, exemptions and rules can differ, so treat the output as a planning figure only.