Statistics: problem 0006

There is the following information on the enterprise for two years (million rubles):

Indicator Previous year Reporting year
Products at comparable prices 45000 45800
Average annual cost of OPPF 12000 13000
Including the cost of machinery and equipment 6000 6600

Determine: 1) the return on assets of all OPPF and their most active part in the reporting and previous years; 2) absolute change in capital productivity: general, due to changes in the utilization rate of the most active part of the OPPF and the share of this part in the value of the OPPF; 3) the absolute change in marketable products: general, due to changes in capital productivity and the average annual cost of all OPPF; 4) the absolute change in the average annual cost of the OPPF: general and due to changes in the capital intensity and cost of marketable products.