[muawiyah]

The 15% estimate is based on a much more modern accounting than something dredged up in China from the mid 1800s.

Folks do this all the time ~ come up with statistics for the past when no contemporaneous source is reliable.

You must not have done well in Statistics 101 either.

[Know your rights]

The 15% estimate is based on a much more modern accounting than something dredged up in China from the mid 1800s.

Then of course you can provide this modern source.