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How is your CPM calculated?
BillboardHub uses the 4-week rate cost to calculate the average CPM per ad space.
The number of daily impressions is multiplied by 28 days. Then the 4-week Rate $ is divided by the total number of impressions and finally multiplied again by 1000.
Example: Billboard #001 costs $700 per 4-week cycle and receives 18,975 daily impressions.
Calculations: CPM = 700 / (18 975*28) * 1000
CPM = 700 / ( 531 300 ) * 1000
CPM = ( 0,00138 ) * 1000
CPM = 1,38 $
Note: The actual value of CPM will fluctuate due to changes in traffic conditions (weather, construction, etc.)
