After the consumer orders,Steve will get ten percent of the total sales as the down payment.The rest will be paid of with the system installed.The total sales amount of the network system of a tiny office computer is 10000 dollars.All the parts will be got from the same suppliers,which need 4000 dollars in all.If Steve pay it off within ten days after receiving the parts,all can be two percent discounted.Steve will always enjoy the discount for his settlement in time. 手工翻译,本人高中生,只过了四级,仅供参考.