Case C-323/18: Judgment of the Court (Grand Chamber) of 3 March 2020 (Request for a preliminary ruling from the Fővárosi Közigazgatási és Munkaügyi Bíróság — Hungary) — Tesco-Global Áruházak Zrt. v Nemzeti Adó- és Vámhivatal Fellebbviteli Igazgatósága (Reference for a preliminary ruling — Freedom of establishment — Turnover tax in the store retail trade sector — Progressive tax having a greater impact on undertakings owned by natural or legal persons of other Member States than on national undertakings — Progressive tax bands applicable to all taxable persons — Neutrality of the amount of turnover as a criterion of differentiation — Ability to pay of taxable persons — State aid)