4 A conference table is purchase for 20000 The expected life
     4 A conference table is purchase for $20,000. The expected life is 5 years after which it will be sold for $3,000. Find its book value and depreciation at the end of each year of its life using sum-of-year-digits method.     
 
  
  Solution
Cost of conference table = $20000
Expected life = 5 years
Salvage value = $3000
5 years
(5*6)/2 = 15
1
| Year | Depreciation Base | Remaining life of machine | Depreciation Fraction | Depreciation Base | Book Value | 
| 1 | 17000 | 5 | 5/15 | 5666.67 | 11333.33 | 
| 2 | 17000 | 4 | 4/15 | 4533.33 | 6800 | 
| 3 | 17000 | 3 | 3/15 | 3400 | 3400 | 
| 4 | 17000 | 2 | 2/15 | 2266.66 | 1133.33 | 
| 5 | 17000 | 1 | 1/15 | 1133.33 | 0 | 

