You get $250. The 12/26 note was $5,000– 60-day note. So I multiplied the note times the rate, divided that by 60 and multiplied it times 5 days….

You get $250. The 12/26 note was $5,000– 60-day

note. So I multiplied the note times the rate, divided that by 60 and multiplied it times 5 days. You get $10.

The rate is 15%.  My question is how did they get $10.00 as the answer