According to the figure, which group$$s salaries had the highest percent change from $2010$ to $2020?$

a$.$ Faculty

b$.$ Researchers

c$.$ Administrators

d$.$ Staff

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$49.$ According to the figure, the proportion of combined University Employee Salaries allocated to Staff and Librarians decreased by how much from $2010$ to $2020?$

a$.1\%$

b$.14\%$

c$.24\%$

d$.37\%$

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$50.$ According to the figure, if the University Salary for Faculty and Administrators constitute the upper$-$level jobs, which of the following conclusions cannot be drawn as a result of the salary reallocation?

a$.$ The wages for librarians, researchers and staff decreased by $17$ percent.

b$.$ Wages for upper$-$level jobs increased while wages for librarians, researchers, and staff decreased.

c$.$ The amount of funds for the upper$-$level jobs increased by $17$ percent.

d$.$ Upper$-$level jobs received more total monies than did librarians, researchers, and staff.

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