pls show your steps. pls show answer as a percentage rate round to 4 decimal places. and if you need one year have 365 days

Mahesh borrowed $4.770 from Becky. He signed a contract agreeing to pay it back 9 months later with 6.35% simple interest. After 2 months, Becky sold the contract to Stan at a price that would earn Stan 5.00% simple interest per annum. Calculate the simple interest rate that Becky earned during the period that she held the contract Express your answer as a percentage rate rounded to 2 decimal places but don't include the % sign