Apple's iPhone revenue plunged a precipitous 15 percent on a year-over-year basis for the holiday quarter, as it had indicated in a rare revenue warning to investors. Despite this, it remains the second largest quarter in Apple's history as other areas of its business managed to keep the overall slide to just 5 percent year-over-year.
https://www.notebookcheck.net/iPhone-revenue-tanked-15-last-quarter-plans-to-cut-prices-in-response.401786.0.html