Fast food chain operator CKE Restaurants Inc. said Tuesday that its same-store sales fell 3.6 percent for the four weeks ended Aug. 10 compared with a year ago. Revenue declined 3 percent to $86.1 million.

But the decline is less severe than the 5 percent year-ago sales decline the previous month.

Breaking down sales between its two brands, the Carpinteria owner of Hardee’s and Carl’s Jr. restaurants, said sales at stores open at least a year dropped 5.2 percent at Carl’s Jr. and 1.6 percent at Hardee’s.

The company said a combination of promotions of new products such as Carl’s Jr.’s Teriyaki Burgers helped sales, and continued belt-tightening should improve the company’s bottom line in the third quarter.

“While year-over-year costs for potatoes, dairy, chicken and soft drink syrups were higher in the quarter, we have been able to offset these increases with a combination of cost savings initiatives, menu price increases and favorable costs relative to beef, cheese, oil, produce and bakery ingredients,” Chief Financial Officer Ted Abajian said in a statement.

CKE shares were down 34 cents, or 4 percent, to $9.14 in midday trading on the New York Stock Exchange.