If you going to a clay range you pay usually per round 25 for trap, skeet and 5 stand, I believe sporting clays is the same. They will provide the clay targets and some clubs you can buy ammo if needed.
Usually you pay per round and if you a guest you might have to pay a guest fee. If you neighbor is a member of the club he probably know about guess fees.
Also check shot size regulations at the club you going too, where i shoot skeet it's #9's on the skeet field and 7 1/2 -8's on the trap fields.
Once you get it all fiqured out have fun it's a great sport no matter what discipline you shoot.