1.   The index is computed by subtracting the percentage of managers who foresee worsening business conditions from the percentage who see conditions improving.

2.   The index is computed by subtracting the proportion of companies foreseeing a decline in business conditions from the percentage expecting conditions to improve.

3.   The index is computed by subtracting the percentage of companies which foresee business conditions improving from the percentage which expect conditions to worsen.

4.   The index is computed by subtracting the percentage of managers who foresee worsening business conditions from the percentage who predict conditions will improve.

5.   The index is computed by subtracting the percentage of major manufacturers that foresee business conditions worsening from the percentage which see conditions improving.

6.   The index is computed by subtracting the percentage of manufacturers which foresee business conditions improving from the percentage who see conditions deteriorating.

7.   The index is computed by subtracting the percentage of managers who foreseen worsening business conditions from the percentage who predict conditions will improve.

8.   The survey index is computed by subtracting the proportion of companies foreseeing a decline in business conditions from the percentage expecting conditions to improve.