Mayfair Co. completed the following transactions and uses a perpetual inventory system. June 4 Sold $600 of merchandise on credit (that had cost $240) to Natara Morris, terms n/15. 5 Sold $9,600 of merchandise (that had cost $3,840) to customers who used their Zisa cards. Zisa charges a 5.5% fee. 6 Sold $5,872 of merchandise (that had cost $2,349) to customers who used their Access cards. Access charges a 4.5% fee. 8 Sold $4,350 of merchandise (that had cost $1,740) to customers who used their Access cards. Access charges a 4.5% fee. 13 Wrote off the account