On January $15,$ Tundra Co$.$ sold merchandise to customers for cash of $$45,000($cost $$30,600).$ Merchandise costing $$11,400$ was sold to customers for $$17,000$ on January $17$ ; terms $\frac{2}{10},\frac{n}{30}.$ Sales totalling $$321,500($cost $$216,000)$ were recorded on January $20$ to customers using MasterCard; assume the credit card charges a $2\%$ fee. On January $25,$ sales of $$78,600($cost $$52,700)$ were made to debit card customers. The bank charges Tundra a flat fee of $0\mathrm{.}5\%$ on all debit card transactions.

Required:

Prepare journal entries for each of the transactions described $($assume a perpetual inventory system$).$

Journal entry worksheet

Record the cost of sales.