Answer: The answer is 35%.
Step-by-step explanation: “Many scientists have been researching about FIO through decades.
A credit scoring expert, "Barry Paperno" who has worked for FICO and Experian, said once -
"FICO’s research proved that a person’s payment track record tends to be the strongest predictor of the likelihood that the individual will pay all debts as agreed in the future."
According to the research so far, it has been found that payment history is <u>35%</u> of the credit score.
Thus, the answer is 35%.