E8-1 Presented below are selected transactions of Federer AG. Federer sells in large quan- tities to other companies and also sells its product in a small retail outlet. March 1 Sold merchandise on account to Lynda Co. for CHF3,800, terms 2/10, n/30. 3 Lynda Co, returned merchandise worth CHF600 to Federer. 9 Federer collected the amount due from Lynda Co. from the March 1 sale. 15 Federer sold merchandise for CHF200 in its retail outlet. The customer used his Federer credit card. 31 Federer added 1.5% monthly interest to the customer's credit card balance