The Strawser$-$Morris Corporation uses a periodic inventory system and has used the FIFO cost method since inception of the company in $1985.$ In $2024,$ the company decided to change to the average cost method. Data for $2024$ are as follows:

Beginning inventory, FIFO $(5,100$ units @ $$31\mathrm{.}00)$ $ $158,100$

Purchases:

$5,100$ units @ $$37\mathrm{.}00$ $ $188,700$

$5,100$ units @ $$41\mathrm{.}00209,100397,800$

Cost of goods available for sale $ $555,900$

Sales for $2024(8,200$ units @ $$71\mathrm{.}00)$ $ $582,200$