Did wall mounts get way more expensive and why not TVs?

So, i work at Walmart often around electronics. I noticed one day prices for wall mounts seemingly got way higher and upwards of like 77 dollars. I remember them being more like 20-50 always. (We sell a LOT btw) but i also noticed that we haven't been selling as many it feels. The mount that was 19 bucks is over 20 now and its no where near as popular

My first thought was obv tarrif stuff, but interestingly none of my TVs have gone up one bit, most are sourced from China too. I know that many tarrifs don't end up going through and what not but its been on my mind rent free