to start, find value of money shared by managers and then staff:Managers: (40/100) x 2100 = 840 Staff: 2100 - 840 = 1260 Then find share for each employee:Staff: 1260/7 = 180Share if divided equally: 2100/10 = 210To find percentage increase:(210-180)/180 = 0.16666, % = 0.1666 x100 = 16.6%Therefore no, salary would increase by 16.6% not 25%