Which report type is best for displaying the total number of open Opportunities?

The summary report is designed to display data in a compact format that allows for easy aggregation of information. This type of report is particularly effective for showcasing totals and summaries, making it ideal for displaying the total number of open Opportunities.

In a summary report, you can group records by specific fields and display subtotals and grand totals automatically, which enables users to quickly grasp the volume of open Opportunities without the distraction of detailed transactional data. Additionally, summary reports can include charts, which enhance the visual representation of data, helping stakeholders interpret the information swiftly.

Other report types, like tabular reports, primarily present data in a straightforward table format without the aggregation that summary reports provide. Matrix reports display data in a grid format based on two different dimensions, which can be useful for comparative analysis but not for simply counting totals. Joined reports allow combining two different report types into one but lack the direct focus on aggregating counts in the manner that summary reports do. Thus, the summary report stands out as the best choice for this purpose.