Tyler,
Sum the figures in the bid columns, sum the ask column, divide the (sums) bid/ask = ACV.
The higher the acv figure, the more bullish, lower and bearish. This is because the bids form the numerator.
You may find it simpler to separate acv into bullish (bids) and bearish (ask); this aids instant recognition of which side is the dominant rather than inferring from a single figure.
Bid/ask gives the bid (bullish) indicator, ask/bid is the bearish indictor. To reduce this to a single figure but still indicate the dominant side, in another cell do this (assume A$1 = bid acv, B$1 = ask acv):
=IF(A$1>B$1,A$1/B$1, -(B$1/A$1))
If the bid acv is greater, the number will be positve (bullish); if the ask acv is greater (bearish), the number will be negative (also format negative as red).
I don't know what your figures trailing to the right represent.
Eurex have just announced 20 levels (5 on your example) on each side for their futures contracts.
Grant.