If you are measuring volatility as the gross amount of change over time in LOCs, then you will want to measure volume as the net change over time in LOCs as well.

如果您根据LOC中的随时间变更的总量度量易变率，那么您会希望也根据LOC中随时间的净变更度量容积。

youdao

Yet, this segment contributed to less than 16% of the OTAs total gross booking volume in 2008.

但在2008年，这一部分只占在线旅行社总预定量的16%以下。

youdao

Hotels contribute to 37% of all U.S. domestic bookings via the OTAs, which is a little over 30% of the ota total gross booking volume.

酒店预订量占在线旅行社美国国内预定量的37%，相当于在线旅行社全球预定量的30%多。

youdao

Total volume of goods sold in dollars, known as gross merchandise volume or GMV (excluding vehicles), was up 14% for the U.S. in the June quarter, on par with the e-commerce industry.

FORBES: Magazine Article

Ebay reports both Marketplaces Transaction revenues and Gross Merchandise Volume in its SEC filings.

FORBES: Why ebay Has 20% Upside To Its Stock Price

They are based on the gross dollar volume for a specific time period.

FORBES: Add It Up, MasterCard Gets To $293