Yum China just gave investors a new reason to worry about the Chinese economy

Yum China Holdings Inc. late Tuesday gave investors a fresh reason to worry about China’s economy.

Yum China’s shares YUMC fell about 9% in the extended session Tuesday after the owner of Pizza Hut, KFC and other fast-food brands in China missed Wall Street expectations for its third quarter, saying that “softening consumer demand” emerged in recent weeks, and cast doubt about its current quarter.

Quarterly…