Campaign pricing is CPM based and the final price is determined by the targeting that is applied to the campaign
Base price: $8 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($8) with Postcode targeting ($2.5) and Sydney Morning Herald Website ($6) targeting you will be charged $16.5 CPM.
Expected Impressions = Budget/CPM × 1000
e.g. CPM of $16.50 and a budget of $500, you would get approximately 30,303 impressions.