John, Paul, and George are having a disagreement over interest rates. John says that 6 3/4% can

Question:

John, Paul, and George are having a disagreement over interest rates.
John says that 6 3/4% can be expressed as 6.75%. George thinks that 6 3/4% can be expressed as 0.0675. Paul remembers converting percents to equivalent decimals and thinks it can be expressed as 0.0675%. Who is correct, and who is incorrect? Explain.