Shown below is activity for one of the products of Denver Office Equipment:

January $1$ balance, $690$ units @ $$60$ per unit $$41,400$

Purchases:

January $10$: $690$ units @ $$64$ per unit

January $20$: $1,220$ units @ $$66$ per unit

Sales:

January $12$: $1,000$ units

January $28$: $800$ units

Required:

Compute the January $31$ cost of goods sold for January, assuming Denver uses LIFO and a

perpetual inventory system.