Investors are exactly handing out rave reviews when it comes Yelp's disappointing sales results. Shares fell as much as 30 percent in after hours trading Tuesday. Yelp reported sales of $197.3 million for the first quarter, falling short of Wall Street estimates. Outlook isn't good for Yelp either. The company may struggle to break $900 million in revenue after a second consecutive quarter of weak advertiser growth and declining forecasts. It's been a sudden decline in momentum for the company after it reached $1 billion in annual revenue earlier in 2017. Yelp's stock was down 19 percent on Wednesday. "It was all hands on deck obviously at that point, and we put a team in place to focus on that particular cohort and that particular profile"