My professor said the example calculations are incorrect. Can you please check the calculations Example: Reducing Balance Depreciation Method

An asset has a useful life of 3 years.

Cost of the asset is $2,000.

Residual Value is $500.

Rate of depreciation is 50%.

Depreciation expense for the three years will be as follows:

NBV	R.V	Rate	Depreciation	Accumalated Depreciation
Year1:	(2000	-	500)	x	50%	=	750	750
Year2:	(1250	-	500)	x	50%	=	375	1125
Year3:	(875	-	500)	x	50%	=	375*	1500

- See more at: http://accounting-simplified.com/financial/fixed-assets/depreciation-methods/declining-balance.html#sthash.DlDS4M7z.dpuf