In Russia, the business confidence index measures morale among manufacturers. The index is calculated as the arithmetic average balances of assessments of actually existing levels of demand, stocks of finished products (with opposite sign) as well as change in output expected in the next 3 months. The index shows the difference between the percentage share of executives that are optimistic and the percentage of that is pessimistic. The index takes a value between -100 (all responding entities asses their situation as poor and expect it to become worse) up to 100 (all participants are satisfied with the current situation and expect it to improve); 0 indicates neutrality.