the total amount of anti tank weapons donated so far must be over 10k easy.
we sent 4,000 + USA 4,600
Ukraine claims to have destroyed around 1,300 vehicles.
so they are killing 1 vehicle for every 10 tries?
NYtimes claims
and they still need more including 6000 from the UK
I've seen at least one video where they shot one at an abandoned tank though, I guess it's easy to waste things when you get them for free
Not every one will have made it to the front yet. I'd bet a lot of them are being stashed away in the likes of Kviv ready to make the lives of any russians hell if they try to get armour into the city.
Not every one will be used in "anger", as has been said some will be used for training.
Not every one will be used against armour, there are other tactical uses for them.
Not every one will get a hit, especially if used by inexperienced personal in actual combat conditions as opposed to training.
Not every hit will get a kill.
Also if you can't make use of the enemy weapons, or get them to where they can be used, the best option is to destroy them so the enemy doesn't get them back, this has been basic military 101 since the roman times, if you had to abandon any weapons you should try to destroy them on your way out the door.
Given the relative cost and complexity of the anti tank weapons vs the tanks, even is you use 10 per tank it's still a win for you, especially if the guys shooting the anti armour weapon survive, but the crew on the vehicles don't.