A Shadow Variable in Vensim is a variable that appears gray in the model. It is used for convenience, if an arrow crosses over too many things or gets too messy, then a shadow variable can be used to take the place of an already defined normal variable $($stock$,$ rate, aux$)$

In the model, what does Rework Rate directly connect to downstream? $($Hint: shadow variable$)$ Describe how Rework Rate affects this variable in practice.