The Armed Forces of Ukraine showed simultaneous firing of four HIMARS multiple rocket launchers.
What is known
Naturally, no one will say in which direction the HIMARS were used and what objects were hit, but we don't need to. The video shows the launch of four rocket packs (24 of them).
The cost of one projectile is $150,000. Thus, the video shows the launching of $3,600,000 on the positions of the Russian occupants.
For those who want to know more: