Weekly reporting - formula check

Looking for your expertise advise.

Attached are the reporting documents that I maintain for my team (call center), to send out weekly/monthly stats. The application used at my company does not really provide an accurate average report. So I manually dump data into Excel to calculate the average. We don't assign metrics to agents but I like to share data with them.

If you can take a look at the July WK4 stats to see if my formula's are right and if the numbers showing correct average.
Please no rude comments. I am not a expert in excel. I am just trying to do my job and help out my team to improve the service.

Report 7.17-7.21 and 7.24-7.29 is the raw data downloaded from our application.

July WK4TEST is in Excel.