The Breton Symphony Orchestra board of directors and the musicians' union are currently in contract negotiations. The musicians' union is considering proposing a new contract that would demand the following: a 10% increase in musician salaries, the creation of a new financial bonus system for musicians who have been with the orchestra for at least six years, and a limit on the number of rehearsals per week. The answer to which of the following questions is LEAST important in helping the union to determine whether the board will be inclined to accept the new contract proposal? ['Is the proposed limit on the number of rehearsals per week reasonable when compared with industry standards?', "What percentage of the orchestra's revenue is generated from ticket sales?", 'Does the orchestra have the means to pay for a 10% increase in musician salaries?', 'Are there comparable musicians not currently with the orchestra who would be willing to work under a less favorable contract?']