Struggling restaurant chain McDonald's Holdings Co. (Japan) on Friday cut its full-year earnings forecast by about 50 percent due to weak sales during the first half of the year.

McDonald's slashed its full-year group net profit projection to 2.09 billion yen from 3.96 billion yen on revenue of 303.36 billion yen, down from 328.27 billion yen in the initial forecast.

According to January-June results announced the same day, McDonald's group net profit came to 133 million yen on sales of 146.56 billion yen.