You have no way of knowing what many of them mean!
For instance 'VST*Value-Price' is totally meaningless! Really they mean (I think!) '(VST*Value)-Price'.
For instance, say VST=2, Value=4 and Price=3.
Then (VST*Value)-Price results in 5
Or VST*(Value-Price) results in 2

You have no way of knowing what many of them mean!

For instance 'VST*Value-Price' is totally meaningless! Really they mean (I think!) '(VST*Value)-Price'.

For instance, say VST=2, Value=4 and Price=3.

Then (VST*Value)-Price results in 5

Or VST*(Value-Price) results in 2