KHS&R's Construction bought a truck on 1/1/ at a cost of $31,000, an estimated salvage (residual) value of $3,000, and an estimated useful life of 4 years. The truck is being depreciated on a straight-line basis. At the end of year 3, what amount will be reported for accumulated depreciation? Fill in the blank with your calculated number. DO NOT include commas, $ signs, period, decimal points, etc., just enter the raw number. Webcourses will add commas to your answer automatically. For example, if you calculated the answer to be $24,123, you would only input: 24123