Question $22(6\mathrm{.}25$ points$)$

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 $\backslash (\backslash$$ $70\backslash )$ 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:

Assuming we are not being starved by raw materials supply, blocked by demand, or somehow otherwise slowed down by breakdowns or the like, how much revenue can the process generate in a year? $($Hint: start by finding the actual throughput rate of the process, in items $\backslash (/\backslash$mathrm$\{$min$\}\backslash ),$ then converting it into items $\backslash (/\backslash$mathrm$\{$yr$\}\backslash ),$ then $\backslash (\backslash$$ $/\backslash$mathrm$\{$yr$\}\backslash ).)$ Please use four significant figures in your answer.