Gumroad says "10% + fees." The real number on a $500 product? $65.30 gone. I've sold $500K+ in digital products. Here's what actually disappears per sale:
Views
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Views
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Loading velocity curve…
—Views / houraverage velocity since it published
—Peak velocitythe hottest sustained views/hr it ever hit
—vs. their normalpace relative to this creator's own baseline
—Engagementlikes per view — real engagement is hard to fake
—Agehow early Slope caught this surge