Incorrect calculated measure total

Ya, that won't math correctly.  If math was a verb.

1  2

2  3

3  4

(1+2+3) * (2 + 3 + 4) = 6 * 9 = 54.

(1*2) + (2*3) + (3*4) = 2 + 6 + 12 = 20.

You want the latter, but are doing the fomer.

I would think...

Total Shipped Value = sumx(REV_HistoryReport, REV_HistoryReport[Total Li Valu Amt]) / REV_HistoryReport[Ord Bill Unit Qty] * OpenOrders[Qty Filled])

But... I'm skeptical that is going to handle OpenOrders correctly.  How are those tables related?