Well John, first let's go back and look at pre-COVID, our SG&A was running 78% of gross. Today it's at 66%. It's up 3% from Q1 sequentially. And I think that we're going to end up somewhere in the low 70s as we tend to get back to normal -- to a normal business. Now obviously, we've had some impact due to salaries and wages. There's pressure on that. We've had the opportunity to open up our people to be able to travel, which has increased some of our SG&A. Our marketing costs and advertising is down. The good news is we took 10% of our people out during the COVID, which has reduced our SG&A from that standpoint, not including, obviously, the additions we've had from our acquisitions. Overall, I think that taxes have increased some. But I think that today we are really tight. Our turnover right now is at 17% to 18%, depending on which area of the country you look at. When you talk about comp to growth, we're running at about 40% overall and that's consistent with what it was last year. When you look at our variable compensation, it runs about 25% of gross and on the fixed side, which is parts and service, it runs about 25%. So overall, I think those are steady. They're in line and we don't see really anything driving those higher, because a big part of our business is variable, when you think about flat rate mechanics, you think about sales. And the good news on the sales side, with the reduction of our people, we've been able to get more productivity and that's helped us drive some of these grosses from the standpoint of reducing the number of sales people, but adding more units per person, which has been key. So again, we're going to be driven here from an SG&A probably -- with the supply shortages from a marketing and advertising standpoint, we're going to keep that pretty much in hand and not grow that and expect where we need to maybe on a new acquisition in the marketplace. We think that as we look at the business pre-COVID, we really looked at how we would restructure the business and we've kept those parts of our business in line, and that's given us I think the ability to maintain probably anywhere from 500 to 700 basis points better as we get into a more normal operation and again with a 10% reduction in people.