What is the operating efficiency ratio for a hotel, if the total revenue consisted of rooms revenue $$3,075,975$ and $F$&$B$ revenue $$943,425?$ The rooms departmental expenses were $26\mathrm{.}4\%$ of rooms revenue and the F&B departmental expenses were $69\mathrm{.}6\%$ of $F$&$B$ revenue; the undistributed operating expenses were $24\%$ of total revenue; management fees represented $4\%$ of total revenue; rent, property taxes & insurance were $$401,940$; interest and depreciation expenses were $$241,164.$ Your answer needs to be converted to $\%.$ You do not need to include $ or $\%$ sign in your answer.