Presented below are the components in determining cost of goods sold. Determine the missing amounts.

$\backslash$table$[[,\backslash$table$[[$Beginning$],[$Inventory$]],,,\backslash$table$[[$Cost of Goods$],[$Available for Sale$]],,\backslash$table$[[$Ending$],[$Inventory$]]],[,$$$90,000,,$$$120,000,$$$,,($a$),$$$,],[,$$$59,000,$$$,,,$$$124,000,,,$$$$