Target's year end $\frac{12}{31}\frac{?}{2020}$ inventory records indicated a balance of $$678,000.$ Additional information indicates that this amount also included the following inventory items:

Purchases: $($Target purchased from wholesalers.$)$

$\backslash$table$[[$Date shipped by seller,Date arrived,Amount,Shipping Term$],[\frac{12}{27}\frac{?}{20},\frac{1}{2}\frac{?}{21},$$$210,000,$FOB shipping point$],[\frac{12}{22}\frac{?}{20},\frac{1}{3}\frac{?}{21},$$$120,000,$FOB destination$],[,,,]]$

Sales: $($Target sold to retail stores.$)$

$\backslash$table$[[\backslash$table$[[$Date shipped by$],[$Target$]],$Date arrived,Amount,Shipping Term$],[\frac{12}{27}\frac{?}{20},\frac{1}{5}\frac{?}{21},$$$321,000,$FOB destination$],[\frac{12}{26}\frac{?}{20},\frac{1}{4}\frac{?}{21},$$$200,000,$FOB shipping point$],[,,,]]$

Consigned inventory:

$\backslash$table$[[\backslash$table$[[$Date shipped by$],[$consignees$]],$Date arrived,Amount,Shipping Term$],[\frac{12}{27}\frac{?}{20},\frac{12}{31}\frac{?}{20},$$$19,000,$FOB destination$]]$

What is Target's adjusted ending inventory balance at December $31,2020?$