• x00z@lemmy.world
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    2 days ago

    I think this is technically more correct:

    365.25 / 7 = 52.178571429
    52.178571429 * 420,000,000 = 21,915,000,000
    (2,100,000,000 / 21,915,000,000) * 100 = 9.582477755
    

    Which means it’s 9.58% rounded down to 2 decimals.

    (This is using the common definition of a year and not a “tropical year”)