Assume an investor deposits $112,535 in a professionally managed account. One year later, the account has grown in value to $131,686 and the investor withdraws $23,963. At the end of the second year, the account value is $86,684. No other additions or withdrawals were made. Calculate arithmetic average of holding period returns during years 1 and 2.

Round the answer to two decimals in percentage form.

Please write % sign in the units box.