Eric Wintemute
Analyst · ROTH Capital
Thank you, Bill. Moving on to Slide 3 on the agenda. But before we begin, I wanted to address our 10-Q filing, which we did last -- yesterday afternoon last evening, and then we did our earnings release this morning. We have in the past been asked to file our 10-Q and give people a chance to read it before the conference call so that they could have more in-depth questions. And we also had in the past filed our earnings release prior to the market opening and doing our call after the market. And we had advised, particularly in times when we had unusual earnings that we should do them simultaneous after the market closed.
And so this year, we met -- this quarter we met expectations or exceeded expectations. We had our Q ready yesterday. Today is our last day to file the Q timely, and we have had some glitches in the past with getting the filing through the system. So obviously, we did not expect the kind of reaction that's happened today. We apologize and hindsight is definitely a mistake. We will not predo our 10-Q in the future unless we have some other reason and we'll advise people of that. So with that said, I'm going to make a few comments, turn it over to Bill, I'll touch base on our growth initiatives, and then we'll open up for questions.
So moving on to Slide 4. The revenue growth, these are just reiterating the targets that we've stated back in March, the revenue growth in that 8% to 11% gross profit margin, 38% to 40%. Operating expenses in that 31% to 33%; interest expense similar to '21. Tax in the mid-20s, EBITDA -- debt-to-EBITDA ratio without acquisitions at year-end and below 1, but [ with ] acquisitions could be up as high as 2.5. Net income, we said the target would be in that 60% to 70% increase. What we have gone ahead done here on EBITDA has translated that 60% to 70% increase into an EBITDA percentage growth, and that would be 24% to 28%. For real numbers, that would come into 79% to 81%, which coincidentally 79% was our top EBITDA of all time, and that was in 2012.
So just where we're at the halfway point, our revenue growth obviously growing faster than we had given initial target for. Gross profit margins are above the profit margin range that we gave. Operating expenses are right in line with the target. Interest expense down 40%. And at this point, I think unless we had some rather high acquisitions before the balance of the year, we expect to be below our 21%. Tax rate we're at 30%. I think now we're expecting to be kind of at the higher of the mid-range right around 27% is what we're expecting for a full year. Debt-to-EBITDA currently at 1.33x, we would expect to be below that [ 1% ] again without acquisitions. Net income for the halfway point, we're up 104%, which exceeds our target and EBITDA, right now we're up 40%, which again is ahead of our target.
Moving on to Slide 5. Just a couple of highlights to talk about. Again, revenue is up $47 million. People have asked, okay, how does that relate to price increases versus volume? Of that $47 million, 45% or $21 million is related to price increases and 55% or $26 million is a result of volume increases. Our gross margins, as I mentioned, is up from 39% to 41%, a 2% increase. The key driver for that is factory performance, which is about 1.5% of that 2% gross margin increase. So factories are running well. It is a scramble that I'll talk about a little bit later, but we're doing well at this point.
Moving on to Slide 6. So we've talked about supply chain challenges in each of the past calls because it continues to be something top of mind. We talked about the availability of even finding the resources, the cost of those resources, if you can find them, and then the actual logistics of trying to get them delivered to the plant on time for manufacturing or for the entity for actual sales. So one of the things that we did and we have schedules that we've laid out and we have scheduled for production that are laid out in advance of the year. We're working on the '23 schedule right now.
And in that process, we basically kind of know generally when we're going to be manufacturing in certain different products. But as we went through, when I listened to peers, having all kinds of problems, packaging, bottles, caps, pallets, all the inerts, some of the solvents and the intermediates. And again, any one of those issues that you -- and one of those inputs that you don't have can cause delays and missing actual demand. So what we stated is we were going to place orders for all of the raw materials we needed for the balance of the year, and albeit, give delivery dates that were out, just the concept of we're just not going to do kind of a just in time.
We're going to purchase and bring into in advance. And so our raw material inventory has actually doubled from where we were in '21. And a lot of that is packaging and some inerts. The intermediates, we've laid out a schedule for everything through the balance of the year and intend to take those as needed.
So I've mentioned before about forecasting cost and timely price increases. I think we've done very well with that, particularly as you look at what our cost increases have been for this first half of the year. And in addition, those increases have been in advance, and therefore our margins are being maintained well. With a number of additives, a lot more airfreight, ocean freight being 10x the cost and just calculating all of that by SKU, building that into the cost of -- and again, this is inbound freight. We're not typically doing deliveries by air freight, but the inbound freight, getting that built in so that we understand what our true cost of goods and that filters down to the marketing people and they're able to figure out how they're going to recoup the increased cost.
And then in-season factory production adjustments. Again, I think I mentioned before, we're having calls basically on a weekly basis, looking to the schedules. I look at them every day and we try to make sure that we stay ahead of use, not necessarily ahead of demand because people are pushing for products sooner than they actually need it just because of scarcity, but making sure that we're sticking with the demand.
Moving on to Slide 7. I just -- I've got this in there just to kind of show kind of the effect is as we entered the '23 season, which, I mean '22 season, which really kind of kicks off in kind of September, October of '21. We had very high demand from our customer base in the United States domestically. People looking to get ahead of materials. And as such, we carried quite a backlog going into Q1 of this year. So I think we did a very good job at, I'll say, managing the products that we had to our customer base, making sure that no one customer overpurchased what their needs were and therefore put a situation where we couldn't deliver to other customers.
So we managed that well. Our customers in the U.S. were extremely happy. We have been told by several customers that we have done the best job of all the suppliers in the U.S. So we're very proud of what we accomplished there. Q2, subsequently, domestic was flat with the previous year. And -- but then you see international kicking in, in Q2 as we're seeing kind of the -- I don't call it people trying to buy ahead but a little bit of making sure that they've got product in the side and meeting the demands that they have.
So moving on to Slide 8. Kind of looking out as kind of our core products and where we are -- this is kind of targets, I think, for where we believe we'll end up at the end of this year. Herbicides, which is the #1 crop input had been a weakness area for us, very strong in insecticides. So fumigants, [indiscernible] kind of biologicals, but our herbicide market was kind of more to the corn market with our Impact product line. But we made a concerted effort to expand that base.
And as such, over the last 4 years, we've added 10 new products largely through acquisition, but we've expanded outside of corn to cotton, rice, sugarcane, soybean and canola. We were up quite a bit in the first half and expect year-end to be up about 40%. So kind of growth in our core segment. Our soil insecticides, I expect about 17%. It could have been -- it could be bigger, except we've had to push our factory in Alabama to produce our cotton defoliant Folex for an additional 4 weeks of production to meet a kind of excess demand from what we originally thought the market would do. So we have that ability to shift. And so doing, we're pushing back Aztec from November start date to a December start date. And so we will position the Aztec that we have produced in December, but we're going to go into '23 with a pretty significant backorders on our soil insecticides.
Cotton, I mentioned the Folex also Bidrin, very strong. And so we're looking this year to be up about 29% there. So that's kind of the highlights. One of the things that we wanted to make sure of and let you know was with all the sales that we've done, what kind of in-channel inventories we're looking at. And so we have -- and we won't know for sure until we get first, second week of September. But we did go out. We know basically what's sitting at the distributor level that we've got track of. But the key retailers, we went out and physically spoke with them and talked through theirs. There are some retailers that have more inventory that they say they're going to keep that they do not want to return it. They're happy to have the inventory going in. But therefore that's not going back to distribution. So when we do the overall calculation, our best guess is that inventories in channel will be less going into '23 than they were going into '22. And obviously, that overall inventory being down signals a strong '23 seasons.
Okay. So with that, David, I'm going to move on to you for your comments about our finances.