A company produces 11,000 units of which 600 are spoiled units because the process, even though carefully and efficiently executed is unable to produce good units 100% of the time. Another 80 units are spoiled because machines broke down and there also were operator errors. What is the normal spoilage rate (round to two decimal places)

Select one:

A.

5.45%

B.

5.81%

C.

0.73%

D.

6.18%