"report a decrease of" is correct and usable in written English.
You can use it when you are talking about a decrease in something, such as a decrease in sales, profits, attendance, etc. For example, "The company reported a decrease of 25% in profits last quarter."
Authors report a decrease of the FRR but not of the EER.
Moreover, Liu et al. (2009) report a decrease of Escherichia coli O 157 :H 7 bacteria in artificial soil vermicomposts.
The authors estimate a persistence rate for infliximab after the first year of the treatment of 83%; they also report a decrease of the rate to 33% after seven years.
Additionally, neoadjuvant trials report a decrease of the rate of metastastic lymph nodes (30 48%)[ 20, 21] compared to initial surgery (60 80%) [ 2, 22- 26].
Muilenberg et al. report a decrease of the concentration of airborne particles around the front seats when using an AC system [ 15].
Six months after the intervention, apprentices in the intervention sites were three times more likely to report a decrease of at least half a pack in the amount of cigarettes they smoke daily (OR = 3.13; 95% CI: 1.55 6.31).
Sears, Roebuck reported a decrease of 3.3percentt.
And two large pediatric emergency departments reported a decrease of about 11percentt.
Last year, the Bush administration reported a decrease of nearly 30percentt in the number of chronically homeless from 2005 to 2007, in part because of financing intended to provide housing for homeless people with addictions and disabilities.
It was a mixed picture in the Sunday tabloid and mid-market sectors with the Daily Star Sunday down 0.36%, Sun on Sunday falling 0.05%, Sunday People dropping 0.46% and the Sunday Express also reporting a decrease of 0.46%.
Ad spending totaled $157 million in the first half of 2010, Kantar reported, a decrease of 8.9 percent compared with the $172.5 million spent in the same period a year ago.
