Better Late than Never...
http://www.radionz.co.nz/programmes/first-person/story/201776580/first-person-with-john-campbell-apple's-high-ideals-and-low-tax-bill
If I recall correctly, John Campbell's investigation took him to Apple's only corporate presence in NZ, an effectively unmanned office. Little more than a PO box/mail-drop.
The idea that in 2014 $551m of $568m revenue was eaten up by "cost of sales" is specious and intelligence insulting nonsense.