Campaign pricing is CPM based and the final price is determined by the targeting that is applied to the campaign
Base price: $6 CPM
Postcode targeting: +$2.5 CPM
Capital cities and districts targeting: +$2.5 CPM
Regional area targeting: +$2.5 CPM
Age targeting: +$2.50 CPM
Gender targeting: +$2.50 CPM
Interest and behaviour targeting: +$2.5 CPM
Website +$6 CPM
For example if you have a campaign($6) with Postcode targeting ($2.5) and Sydney Morning Herald Website ($6) targeting you will be charged $14.5 CPM.
Expected Impressions = CPM x Budget × 1000
e.g. CPM of $14.50 and a budget of $500, you would get approximately 34,483 impressions.