Can you please explain how to come up with the year end book value? my numbers aren't adding up

can you please explain to me how to come up with the year-end book value?

Required information Use the following information for the Exercises below. (Algo) [The following information applies to the questions displayed below.] NewTech purchases computer equipment for $268,000 to use in operating activities for the next four years. It estimates the equipment's salvage value at $30,000. Exercise 10-7 (Algo) Straight-line depreciation LO P1 Prepare a table showing depreciation and book value for each of the four years assuming straight-line depreciation. Exercise 10-7 (Algo) Straight-line depreciation LO P1 Prepare a table showing depreciation and book value for each of the four years assuming straight-line depreciation