I’m in southern New Mexico/West Texas. Last year I paid 175 per bundle of alfalfa (21 bales to a bundle, each weighs 55-60 pounds). This year it went to 210 per bundle, a 20% increase. Luckily, I stuffed my barn full last year and still have lots left so I only bought a few bundles. Add to that the fuel prices to drive truck and trailer about 100 miles round trip to go get it and get home).
Our grass hay (bermuda) is shipped in from Arizona. Three strand bales, about 100 pounds each. Last year was $19/bale. This year, I picked up 10 bales at a local feed store at $26.50 each. I then found a supplier that delivered 64 bales to me (a squeeze) for $25/bale. My cost increase on grass is about 30% over last year.
We are in the desert so no pastures. I also have round bales of grass (bermuda/prairie grass) that came out of the Abilene, Texas area last winter. Around 1100 pounds. I paid $140 each for them in December. I put them out in my turn out so the horses can munch on them. I don’t know what the prices will be this year, I will need to buy some in a couple of months. I anticipate a big jump 
Fuel prices are continuing to rise but the other factor is the cost/availability of fertilizer. The grass has to be fertilized after every cutting so that could really jump the prices up in the coming year. The fertilizer is made of urea, which is the same thing that makes the DEF for diesel engines. There is talk of a national shortage of it as most of what we use in the US is imported from Russia and China.
Bad news on all fronts for continued inflation and coming shortages…