calculation rules - Robuta Search

https://www.wolterskluwer.com/en/solutions/cch-sales-tax-rates-and-rules

Simplify and automate your sales and use tax, and ensure audit-preparedness and defense.

https://www.ana.co.jp/en/be/guide/reservation/domestic/applicablefare/

[ANA Official Website] Fare Calculation Rules (Japan Domestic Flights)