What did I do wrong?

Exercise 130 A machine cost $900,000 on April 1, 2017. Its estimated salvage value is $90,000 and its expected life is eight years. Your answer is correct. Calculate the depreciation expense by straight-line for 2017. (Round answer to 0 decimal places, e.g. 5,275.) Depreciation expense 75938 SHOW ANSWER SHOW SOLUTION LINK TO TEXT Your answer is correct Calculate the depreciation expense by double-declining balance for 2018. (Round answer to 0 decimal places, e.g. 5,275.) Depreciation expense 182813 xYour answer incorrect. Try again. Calculate the depreciation expense by sum-of-the-years'-digits for 2018. (Round answer to 0 decimal places, e.g. 5,275.) 157500 Depreciation expense Your answer correct Which method would result the smallest income amount for 2018? Double-declining depreciation Click if you would like to Show Work for this question: Open Show Work SHOW ANSWER LINK TO TEXT