Answer:
[tex]8.33\%[/tex]
Step-by-step explanation:
we know that
The total removed by milling is equal to (3.00"-2.75")=0.25"
In this problem 3.00" represent the 100%
so
using proportion
Find out how much percentage represent the total removed by milling
[tex]\frac{3.00}{100}=\frac{0.25}{x}\\\\x=100*0.25/3.00\\\\x=8.33\%[/tex]