Straight-Line Depreciation Rates Convert each of the following estimates of useful life to a straight-line depreciation rate, stated as a percentage: (a) 10 years, (b) 8 years, (c) 25 years, (d) 40 years, (e) 5 years, (f) 4 years, (g) 20 years. If required, round your answers to one decimal place.

Years Percentage
a. 10 years fill in the blank 1
%
b. 8 years fill in the blank 2
%
c. 25 years fill in the blank 3
%
d. 40 years fill in the blank 4
%
e. 5 years fill in the blank 5
%
f. 4 years fill in the blank 6
%
g. 20 years fill in the blank 7
%

a) 10%

b) 12.5%

c) 4%

d) 2.5%

e) 20%

f) 25%

g) 5%

Explanation:

10 years depreciation results in a depreciation rate per year = 100% / 10 = 10%

8 years depreciation results in a depreciation rate per year = 100% / 8 = 12.5%

25 years depreciation results in a depreciation rate per year = 100% / 25 = 4%

40 years depreciation results in a depreciation rate per year = 100% / 40 = 2.5%

5 years depreciation results in a depreciation rate per year = 100% / 5 = 20%

4 years depreciation results in a depreciation rate per year = 100% / 4 = 25%

20 years depreciation results in a depreciation rate per year = 100% / 20 = 5%