On January $1,2022,$ Ivanhoe Corporation acquired equipment at a cost of $$750000.$ Ivanhoe adopted the sum$-$of$-$the$-$years'$-$digits method of depreciation for this equipment and had been recording depreciation over an estimated life of $8$ years, with no residual value. At the beginning of $2025,$ a decision was made to change to the straight$-$line method of depreciation for this equipment. Depreciation expense for $2025$ would be

$$39063.$

$$93750.$

$$150000$

$$62500$