We have a process with four steps; each step occurs in order. All product must go through each step. Each product can be sold for $$40$ per item; the process operates for $16$ hours a day, $220$ days a year.

Each workstation can work on one item at a time. The number of workstations for each step, as well as the flow time for each step, is given here:

Step # of workstations Flow time $($min$)$

$117$

$2416$

$3514$

$449$

Assuming we are not being starved by raw materials supply, blocked by demand, or somehow otherwise slowed down by breakdowns or the like, what is the actual throughput rate of the process, in items$/$min$?$ Please use three significant figures in your answer. $\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_$