Risk mitigation involves reducing the impact of a risk event by reducing the probability of its occurrence. To mitigate means to make something less bad or less severe so in this case if a risk turned out to be a negative reality, risk mitigation should be a part that you've already planned so you could easily solve it and move on with the project.
Answer:
Calculation of Gain or Loss:
Book Value of Truck = 25,200 - 22,680
= $2,520
Gain on Exchange = 4,158 - 2,520 - 630
= $1,008
Therefore, the journal entry is as follows:
Accumulated Depreciation A/c Dr. $22,680
computer A/c Dr. $3,150
To Truck $25,200
To Cash $630
(To record the Truck)