yogi55

1 week shorter is significant, as pointed out at the very beginning of the call by the woman who initiated the call. Potentially, numbers wise it would translate to:
1week/14weeks= 7% less duration, so if we adjust today's quote of 77.3 million iPhone sold, we would get 77.3 M+(77.3*7%) = 82.7 M.
This would mean that on equal basis of 14 weeks, this 1st quarter was potentially 5.6% higher iPhone sales YOY:  (82.7-78.3)/78.3=5.6%.