In order to calculate the effective tax rate paid by Apple, in
2013, the formula should be...
=B16/B5
=B15/B14
=B15/B12
=(B16/B14)-1
=(B14-B15)/100
D E F Sep-16 Sep-17 Sep-14 Sep-15 $170,910,000 $182,795,000 $233,715,000 $215,639,000 $229,234,000 $106,606,000 $112,258,000 $140,089,000 $131,376,000 $141,048,000 Gross Profit $64,304,000 $70,537,000
