You can get the summary of submissions based on specific functions.
It is the heading of the summary block.
Aggregation means nothing but the total number of submissions in the app.
Sum - Calculates and displays the sum or addition of numerical values of submissions. If the submissions do not contain a numerical value, then it will display 0.
Count - Total number of submissions
Average - Calculates and displays the average of numerical values of submissions. If the submissions do not contain a numerical value, then it will display 0.
Minimum - Displays the minimum numerical values of submissions. If the submissions do not contain a numerical value, then it will display 0.
Maximum - Displays the minimum numerical values of submissions. If the submissions do not contain a numerical value, then it will display 0.
Examples:
Aggregation - Count
Aggregation - Sum