You have been contacted by Joe Davison, CEO of Sports-Pro Athletics, Inc., a manufacturer of a variety of athletic equipment. He has asked you how to account for the following changes.

1.		Sports-Pro appropriately changed its depreciation method for its machinery from the double-declining-balance method to the units-of-production method effective January 1, 2020.
2.		Effective January 1, 2020, Sports-Pro appropriately changed the salvage values used in computing depreciation for its office equipment.
3.		On December 31, 2020, Sports-Pro appropriately changed the specific subsidiaries constituting the group of companies for which consolidated financial statements are presented.

Write a letter to Joe Davison explaining how each of the above changes should be presented in the December 31, 2020, financial statements.