Employees of the company, WD received commissions 1000 baht because of time already sold 3000 PCs. previously 1, this time only sold 5,000 2000 pieces, it lowered commissions.
Employee of the company WD earn commissions, 1 000 baht since the last time the sale, 3 000 pieces, commissions, 1 5000 baht was sold only 2 000 pieces, therefore, increase commissions.