The GWWC numbers reflect global median income, which is $2,920 per capita, and not the mean income. It makes sense to use the median to think about global poverty, because the mean is mostly dependent on the global rich. When Bill Gates walks into a bar, the mean income of the bar patrons shoots up but the median barely budges. When a group of broke Africans goes into the bar, both the mean and the median drop.
The GWWC numbers reflect global median income, which is $2,920 per capita, and not the mean income. It makes sense to use the median to think about global poverty, because the mean is mostly dependent on the global rich. When Bill Gates walks into a bar, the mean income of the bar patrons shoots up but the median barely budges. When a group of broke Africans goes into the bar, both the mean and the median drop.
The GWWC’s How Rich Are You? calculator operates with household income. The global median household income is $9,733 -- see your own link.
That number still only gives a factor of 10x compared to $30K.