Michelle, thank you. I'll talk about the promotion competition. Andy will handle the margin question. Customers are very value cautious for sure, but at the same time, it's not enough if we just focus on promotion. It has to be promotion – fun, promotion and good food. And our focus is to focus on few very effective promotion platform. So what are the famous ones? Crazy Thursday is very, very fun, its user generated content these days and of course, the food there is good. So we have some new food like spring roll, not only normal spring roll, but skinny spring roll. When the spring roll is smaller, they actually taste better. You can try it with our KFC spring roll on Crazy Thursday. And then Pizza Hut is focusing on Screaming Wednesday. Again, very powerful message, very simple message, but with great food and great order from steak to pizza. And Taco Bell, focus on taco to steak. So not only just random promotion, but very focused promotion and we keep doing it again and again and again. It takes time to build to have the effect because a little do people remember Crazy Thursday start from back to 2018. So by know-how, it's a very familiar mechanism and that worked beautifully. And of course, we continue to build new promotional platform KFC, the new one will be Buy More Save More on Sunday. And that has a clear product focus called the whole chicken, during normal times the chicken sell for 39, but on Sunday weekend it sell for 29. So it's not only promotion, but grapefruit. And I think, what people – some also necessarily correlate, how we differentiate from our competitors in driving this promotion. We have the unique advantage of having our own very effective, powerful, agile and nimble supply chain. Because without the supply chain capability to source, to innovate and to deliver all these very affordable ingredients is almost impossible to support this kind of promotion on a sustainable basis. Last but not least, operation team. June 1st Children's Day, we achieved 8.5 million transactions a day. That's huge number of transactions and the fact that our operation team can handle that is amazing. Well, for people who are running the restaurant in operation, we would be able to appreciate how difficult it is to be able to handle that peak and the spike, and the IT system, it did not go down. And we can continue to push our system in terms of the stability and efficiency so that all come together. It's not just marketing promotion, it's supply chain, it's the digital, it's the operation. And while many competitors can probably replicate the marketing campaign, but the operation, the supply chain, digital, these are the real top core capability, very difficult to replicate. So I'll pause here and move on to margin question.