Burger King's classic product upgrades drive consumer return! Q2 U.S. sales surge, seizing market share from McDonald's (MCD.US)

```htmlGolden Ten Data APP reports that one of the most intense competitions in the fast food industry has reached a decisive round in recent financial reports and industry data. Burger King, under Restaurant Brands International (QSR.US), achieved an 8.5% same-store sales growth in the US market in the second quarter, easily surpassing McDonald's (MCD.US), which registered only a 0.8% sales increase during the comparable period. Although Burger King simultaneously renovated restaurants and strengthened marketing promotion, the upgrade of the "Whopper" product is likely the main factor driving this outperformance.```