Answer:
1.67%
Explanation:
With the given information that the computer depreciates 20% a year, we have our basis for making the calculation. What is asked for is how much of a depreciation the computer has monthly. One year has 12 months, so in order to get to the result we just simply need to divided the 20% with the number of months in a year to get the result:
20 / 12 = 1.67
The result is 1.67%, thus the computer depreciates 1.67% on a monthly basis.