tax on share profit "Conceptual framework" published by the financial accounting standards board The level of productivity of society determines the organizational form of social basic economic units. Enterprise is the result of the development of social productive forces to a certain level, which is the product of commodity production and exchange of goods. Microsoft's Surface Pro, Surface Laptop, Surface Book and Surface Studio are the main products of Microsoft's Surface series, but there is a clear difference in the share of the devices. The Surface Pro products account for the highest share (79.9%), the Surface Book (7.5%), Surface Laptop (2.0%), and Surface Studio (0.2%). In New York, the U.S. energy information administration (EIA) released data showing U.S. crude inventories fell by 649.5 million barrels a day in the week ended Dec. 15, beating expectations. Gasoline stocks rose by 12.37 million barrels, but the increase was less than expected. Canning's 1929 book, economics in accounting, cites the economist's view that asset values are determined by the present value of the future cash flows of assets.