how is gross merchandise value calculated 
gmv is calculated by multiplying the total amount of goods sold by their sales price in a given period gmv sales price of goods x number of goods sold the bottom linegross merchandise value gmv is the total value of goods sold by a customer to customer c2c exchange site but the metric is often applied to other types of retailers gmv is a handy metric to calculate because it reports the total value of goods sold but it should be taken into consideration with other metrics particularly for those companies that generate revenue through fees 