Well i have 2 horses and it cost around 200 dollars a week but it depends on how much your horses eat and how big they are.

like if you have throughbreads it would cost more because they eat more and thay are alot bigger

I used to pay £20 a week, £13 approx a week on feed (my monthly feed/shavings bill would work out between £50-60).  Shoes £44 for fronts and trim only on an 8-week shoeing cycle.  One bale a week of shavings at £8.  Hay was £4 a bale, get through a bale and a half a week.  Then there was little extras like fly spray/ mane & tail conditioner etc and lessons at £20 for 45 mins.  Petrol, I think I used to spend more on that!  Although I did cycle for most of the summer and that cut my petrol bill in half, you do have to be dedicated though and brave to tackle some of the roads round here!

well, livery is £25 a week. feed is £11 for around a fort night. bedding is around £8 and supplements are £7. farrier is extra, but of course that depends on who shoes your horse. lessons are £20.  hay is, well i dont know coz we get 50 bales for the whole winter! good luck :)