At the start of this conflict, what were the stockpiles of missiles available to the three combatants, ie America, Israel and Iran? For the Americans, only those available in the Middle East were to be counted. Though no official numbers were available, very likely Iran will have much more than the Americans and Israelis as they have been preparing for this moment for years. On the other hand, the American and Israeli terrorists have been fighting non stop wars and expending their weapons and missiles and could not have more missiles than the Iranians.
Conservatively, lets assumed, just assuming for ease of comparison, that Iran has the same number of missiles as the Americans and Israelis combined at the start of this conflict. The general understanding is that for every missile heading to Israel and American assets, the defenders need to fire two to three missiles to ensure a successful hit. This means an equation of 1:2 or 1:3 consumption rate. For every missile Iran threw at the Americans and Israelis, they need to throw up 2 to 3 missiles to intercept the incoming missiles. Who is expending more missiles is obvious.
Added to this problem, the Iranian production rate is reported to be much higher than the Americans and Israelis. Another factor favouring Iran, China, Russia and North Korea are also sending new supplies of missiles to Iran. Who is going to be depleted of their missile supplies needs no guessing.
The other equation is the cost of the missiles. Everyone is shaking his head at the cost of American and Israeli missiles used to hit the Iranian missiles and also drones. It is an insane joke. Just like the UK pilot celebrating his success in bringing down two drones with two AIM missiles. He was very happy and proud of this mission without knowing the math. He did not know that it was throwing money at each other, and who is throwing away more.
Trump and Netanyahu are panicking with their missiles running out. Trump even signalling that he has to call off this war, but warned of using nukes to replace the low missile stocks. In simple financial terms, Iran is bleeding the Americans and Israelis dry. The cost of manufacturing on both sides is beyond comparison, a military joke. Throwing a few millions against a few thousand dollar drones or slightly more expensive missiles is the pride of the Americans and Israelis.
The Americans and Israelis cannot afford this kind of warfare.