The phrase "attributable to a decline" is correct and usable in written English.
It can be used when explaining the cause or reason for a decrease in something, such as performance, sales, or quality.
Example: "The recent drop in sales is largely attributable to a decline in consumer confidence."
Alternatives: "due to a decrease" or "resulting from a downturn".
About half of the city's drop in the unemployment rate was caused by a decrease in the number of unemployed residents, while the rest is attributable to a decline in the number of people looking for work, said James P. Brown, principal economist for the Labor Department.
In a statement the company said, "Overall, our second-quarter results were primarily attributable to a decline in guest traffic, particularly during the month of May".
The number of verified cases of mortgage fraud declined from 2009 to 2010, but that's partially attributable to a decline in the number of new loans, the LexisNexis report says.
This was attributable to a decline in AIDS related deaths and reversed the trend of adult mortality associated with the HIV epidemic [ 49, 50].
Our measurements of total body fat are consistent with all or most of the body mass difference between the decades being attributable to a decline in fat reserves.
Ebskov et al. (18) indicated that the overall decrease in major LEA rates was attributable to a decline in the number of patients with type 1 diabetes.
About 80% of this decline in hiring was attributable to a fall in churn rather than a decline in job creation (see left-hand chart).
These declines are not attributable to a general decline in population, since the area covered by the Springfield Diocese has actually added some 50,000 people in the relevant period.
Similarly, we found a significant decline (p < 0.001) in any URS to 57.3%, primarily attributable to a 37.4% decline in sore throat, because rhinosinusitis significantly increased from 44.1% to 48.7% (p < 0.001).
This decline in school performance (especially in boys) is common in early adolescence and is attributable to a concomitant decline in their motivation for doing schoolwork.
That drop, though, was attributable to a 20 percent decline in permits issued for condominiums and apartments.
