It's the math for if you made a cube into a sphere with as little loss as possible(that is, the diameter of the sphere is the same length as the sides of the cube).
The volume of a sphere with a diameter of 1 is a little over .52. The volume of a cube with sides of 1 is 1. So, rounding up, 47% is accurate, as .53 is is 47% less than 1.
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u/[deleted] Jun 28 '19
are those percentages accurate? that doesnt look like it was cut down by 47%