I have added up all the "daily new cases reported" and the total came out to be over 2,500 more than the number reported in the "summary" page". There are also considerable discrepancies in their "percentages" reported. For example: with a "total number of PCR tests performed" in Maricopa County Arizona on Sept 7th of 4,369, and a "percentage positive" PCR tests reported as 12.2%, it would result in a "total number of new cases" of 533. But the summary page reports only 198 new cases that day. If, indeed there were only 198 cases positive out of 4369 test results, then the percentage positive would actually only be 4.5%. That is a BIG difference! I don't even look at the Serology results, since that may include people who have recovered weeks or months ago. I have been watching these statistics very closely, while in quarantine, as I am 64 with asthma that sometimes requires a visit to Urgent Care. But when I do the math, nothing seems to add up. So I don't trust the statistics reported. If I am wrong, please set me straight. But this seems like pretty simple math to me. Why is there always such a big discrepancy?