Robinson$$s$,$ an electrical supply company, sold $$7,200$ of equipment to Jim Coates Wiring, Incorporated Coates signed a promissory note May $12$ with $4\mathrm{.}4\%$ interest. The due date was August $10.$ Short of funds, Robinson$$s contacted Capital One Bank on July $20$; the bank agreed to take over the note at a $6\mathrm{.}1\%$ discount.