Economic conditions and product release schedules caused the 34% Mac revenue decline year-over-year, but similar effects are expected to cause strong Mac growth in the holiday quarter.Mac expected to see growthSupply chain issues in 2022 led to a Mac sales spike in September 2022, which is the primary driver of the Mac revenue decline in Q4. Apple also released the 15-inch MacBook Air in June 2023, which also has an impact on the Q4 earnings. Read more