How do I know if my campaign is spending enough?

Using the overview reporting page to understand if my campaign is spending enough

The fill rate is the amount you want to spend in a given period. To determine if your campaign, is spending enough, the Daily fill rate by campaign and Daily fill rate by Line item histograms will help you.

These show the percentage of spending according to the selected capping.

Example: In the histogram Daily fill rate by campaign, it is indicated 96% of fill rate for the day before, I spend 96% of my Daily capping of the day before.