data = [
{ Date: "2022-03-31", Domestic: 491_200_000, International: 74_150_000 },
{ Date: "2022-06-30", Domestic: 521_390_000, International: 70_990_000 },
{ Date: "2022-09-30", Domestic: 534_010_000, International: 77_390_000 },
{ Date: "2022-12-31", Domestic: 554_420_000, International: 83_290_000 },
{ Date: "2023-03-31", Domestic: 541_660_000, International: 87_580_000 },
{ Date: "2023-06-30", Domestic: 561_790_000, International: 90_620_000 },
{ Date: "2023-09-30", Domestic: 569_320_000, International: 90_920_000 },
{ Date: "2023-12-31", Domestic: 564_760_000, International: 95_760_000 },
{ Date: "2024-03-31", Domestic: 547_600_000, International: 98_530_000 },
{ Date: "2024-06-30", Domestic: 540_800_000, International: 101_640_000 }
].map(({ Date: rawDate, Domestic, International }) => ({
Date: new Date(rawDate),
"Domestic revenue proportion": Domestic / (Domestic + International)
}))