What sort of display network bid changes should i make after I have raised my budgets?

[howlusa]

I recently raised my budget and my Avg. CPC has gone way up on many of my campaigns. I have 3 ad groups in each, each at the same Max CPM, $3.Let's take one campaign. The average CPC for each ad group over a 14 day period since I made the budget change is $6.95, $3.19, and $8.06. So should I raise the Max CPM for the $3.19 and lower the $8.06? And if so, by how much?

[BrightHealth]

Did you make any other changes (targeting, etc) that would have caused these increases?

Based on what you've shared so far, the additional budget has increased visibility volume, but the quality of audience has either dropped or are experiencing ad fatigue. I would look at lowering the number of impressions first. Then I would raise your CPM for each, but at a % that's appropriate for each ad group (they perform differently and should be treated differently) to see if it offsets the CPC raise.