Number of I. D. (A)

Executing Time (min) (B)

Precision (C) = (A)/84

Percentage of Time (D) = (B)/66

Efficiency of Weight (C) * (C)/(D)

Full Scan

84

66

1.00

1.00

1.00

Method 1

49

59

0.58

0.89

0.38

Method 2

56

24

0.67

0.36

1.22