You buy a 2x S\&P 500 ETF and hold it for three days. The S\&P 500 Index returns for these three days are 9.48%,14.30%, and 10.76%. What's the slippage of the three-day holding period return you experienced? That is, assuming the three-day holding period return of the S\&P 500 Index is x%, ideally, you should have a return of 2x%. But your three-day holding period return of the 2x S\&P 500 ETF is y%. What is (y2x)% ? Enter a number with two decimal points. Answer the question in percentage terms, i.e., if the answer is 20%, enter 20.00