Which inventory system maintains a running record of inventory on$$ hand, purchased, and$$ sold?

$20242024,$

AvonetteAvonette$,$

$$Inc$.,$ sold equipment and accepted a$$ six$-$month,

$99\%,$

$ $50$ comma $000$$$50,000$

note receivable.

AvonetteAvonette$\text{'}$s

$$year$-$end is December $31.$ If

AvonetteAvonette

fails to make an adjusting entry for the accrued interest on December$31,$

$20242024,$

$ $1$ comma $280$$$1,280,$

the bad debt expense for

$20242024$

would be

$ $480$$$480.$

Using the$$ aging$-$of$-$receivables method, the balance of the Allowance account after the adjusting entry at$$ year$-$end

$20242024$

would be