Your definitely undervaluing a bunch of items.

For treats, pricing one at 5000 bits each on market trades goes pretty fast. I've sold treats for 10,000 bits before.

Can't help much on tack because I don't use them myself, but gems go as high as 10,000 a piece with average around 6000 or 7000 bits so the encrusted tack is definitely undervalued. You also have to consider the ingots going into encrusting.

Roses, lassos, and companions don't really sell unless someone is looking for something specific. Selling those reliably usually requires private trades.

Whistles I think definitely go higher depending on the market environment. Maybe 5000 bits?

Ok thank you for advise! I will update tomorrow 

Okay so first the going rate for ingots is 350-500 bits per ingot, therefore anything sold for ingots would be priced the same value as it is in bits. So selling an item at 50 bits or 1 ingot makes zero sense. And a single treat, as said above, is worth way more than 50 bits or even 500 at that. 

Tack isnt going to sell for anymore than its listed in store for basic tack, its just not worth it and no one is going to pay ingots for them when they are cheap and easy to obtain. I only ever buy basic tack in sets for a discounted price. 

Encrusted tack should take into the value of the gems its encrusted with and it only take, what 2 ingots to incrust? More common gems might be less than harder to find ones like citrine and amethyst. I usually just prefer to buy gems myself because I dont know what color tack I need it on until I am going to put it on a horse. 

Anything seasonal can, in my opinion, bring higher prices off season. It can during its season, like Halloween stuff now, if people want a lot, but when its easy to buy in stores, anyone can get it. Off season, the only place you will get those seasonal items is from other players. 

Same with dyes. Especially since you often need seasonal dyes for quests even when the dye isnt in season. Although some players prefer specific colors and are willing to pay much more for those colors. Doesnt mean everyone will. 

Whistles can go for a bit more than lassos, it doesnt seem lassos sell well. 

Companions generally cost a lot of money or ingots, especially seasonal ones when they release. They usually dont resell that well, especially grey wolves, they are super super overly common and no one really buys them. They are nice if we can make werewolves again this Halloween. 

I believe companions at least have accurate prices on that excel sheet, but again they probably wont sell for quite that much. I know I sell mine for much under and they usually dont move far either. 

No one really buys roses much. I really want more of the spring variety flowers but not many have them and they didnt come back this year I dont think. So if anyone has thosw, the peonies, carnations, daisies, etc I would pay more for them. Any other decor, again comes down to seasonal

Thank you for the help!

Treats:

Apples - 500 bits or 1 ingot 

Oats - 1500 bits or 3 ingot (2nd ingredient in a recipe- drops less often than carrots, apples and clover. Alfalfa would be worth the same)

Carrots - 500 bits or 1 ingot

Clover Treat - 500 bits or 1 ingot

Molasses - 2500 bits or 5 ingots (3rd and rarest ingredient. Need one for every sweet treat so very sought after)

Crafted Treats - 2500 bits or 5 ingots (better off just making them sweet treats. most people are missing molasses so this wouldn't be worth much to them)

Sweet Crafted Treats - 5000 to 10000 bits, or more. Some people don't really mind paying a lot for these as they're the best for catching wilds. 

Tack:

Basic Brown, Tan, or Black saddles - less than 250 bits, 0 ingots. can buy from the general store so people won't bother buying from you unless it's a discount

Basic Brown, Tan, or Black bridles - less than 150 bits, 0 ingots. see above

Encrusted Saddles - price of the saddle 250 bits + 1000 bits for the gem (people can and do pay more for gems, but I've never had trouble buying them for 1000 bits each). 0 ingots. if people have the ingots they would encrust themselves rather than wasting the ingots on paying someone else to do it, so encrusted things will have no ingot value. people also want specific coloured tack and gems, so are more likely to simply buy ingots off someone to encrust their own things rather than buying pre-encrusted tack. even with the very low price I've listed, it's unlikely to sell.

Encrusted Bridles - see above math

Encrusted Saddle Pads - see above math

Dyed Halters (& white) - 1000 bits or less for dyed, if you're lucky and find someone looking for that specific colour I buy most of my dyes for less than 1000 bits so really not worth much. Halters don't give any show boost, so it's not really something people are looking for. white are worth less than 150 bits (their price in the general store.

Dyed saddle pads (& white) - white = less than 100 bits. Coloured = price of the dye pretty much. again you probably won't get many buyers as people like picking their own style and colour. You might make a popular colour, like a wine western pad, but people won't want it because they were looking for wine English or racing pads. the dyes will have better value than dyed items

Others:

Whistles - 10000 bits or  20 ingots

Lassos - 1000 bits or 2 ingots

Companions - grey wolves = no value, there's hundreds of thousands of those floating around, I find them almost as often as roses in explore. horned owl = it's store value. GSD was valuable but recently everyone got gifted some, so they're probably not worth much at the moment. The rest are seasonal, so between 5000 bits and 10000 bits depending on how many are floating around and the time of year. The design will matter too, Elusive black cats will sell better than Turkeys, I collect white stoats but not regular stoats etc. 

Decor:

Roses - no value. millions of them on site. I personally wouldn't buy them for 1 bit each. 

Others - depends on the decor. some seasonal ones like the gift bows and poinsettia give you twin boosts, so I'd price those at 5000-10000 bits. Clover decor is worth less than roses, and the rest of the flowers are pretty but ultimately are just there for looks. might get 2500 for some of the more popular colours. 

Roses should probably go down I sell mine for 10 bits and nobody ever takes them 

Hello! 

Any idea what raw minerals/gems are worth? I'm new here and I have a couple items stockpiled from exploring the Mine. No idea what I should try selling them for. 

For gems, it can depend on which one. A lot of people are collecting Amethyst and pay 5-10k bits for them, but I see very few people collecting quartz or emeralds, so I'd sell those at 1-2k bits. It really depends who's looking for what colour gem at the time. 

Thank you everyone for your responses, I will update this over the week. (I have been inactive for a day or two so, gettine back on track right now.)

Thanks for the help! ^^