4 ms·

"Losing" was the wrong word there. They are spending $11 to acquire $500 of increased business. Even with a 3% profit margin, that's a net gain.

• EGreg 15y ago
  Where did you see the extra $500 ?
  • mbrubeck 15y ago
    From the very first bullet point, on average Amazon prime members "increase their purchases on Amazon from $400 a year to $900 a year."