McDonald's Holdings Co. (Japan) said Wednesday it booked a group net loss of 545 million yen in the first half of this year on impairment losses on fixed assets, while its sales expanded 8.2 percent to 170.60 billion yen.

The hamburger chain blamed the net loss on a special loss of 2.09 billion yen that resulted from newly introduced asset impairment accounting rules. The net loss was the second consecutive red-ink figure but down from the year-earlier 701 million yen, it added.

Consolidated pretax profit for the six months through June came to 1.23 billion yen, a turnaround from a loss of 33 million yen the same period last year.

Per-share group net loss came to 4.10 yen, compared with a loss of 5.28 yen a year earlier.

The company said sales rose as it tried to optimize pricing, stepped up investment in its stores and marketing efforts, opened more 24-hour outlets and introduced new food items.