Ladri Biciclette, S.A. sells only one model of bicycles. This Italian firm expects to increase its prices by 10% next year and, as a result, it also expects the number of bicycles sold to decrease by 29% next year, relative to this year. If these expectations materialize, what will be the exact percentage change in revenues for Ladri next year, relative to this year? Give the answer as a percent with two decimals; e.g., 5.53