The firm's baristas have complained that they suffer from chronic understaffing, poor pay and benefits. They are also urging the company to allow them to ban aggressive customers from Starbucks stores

Starbucks pre-released earnings on Tuesday, showing sales dropped. New CEO Brian Niccol said he plans to outline a broad turnaround agenda next week.

Starbucks Corp has suspended its annual forecasts as new CEO Brian Niccol looks to turn around the coffee giant struggling to stem waning customer demand, sending its shares down about 4% in after-hours trading on Tuesday.

Starbucks said Tuesday it was suspending its annual forecasts as new CEO Brian Niccol looks to turn around the coffee giant struggling to stem easing customer demand. Shares of the company were down about 6% in after-hours trading as the coffee chain also expects to report a decline in quarterly sales and profit.