Mahesh borrowed $4,725 from Becky. He signed a contract agreeing to pay it back 9 months later with 4.85% simple interest.

After 5 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.