1.it is the percentage of a resale price that is profit what is this called

2.what do we call the difference of the listed price and he net price

3.an item listed at Php 150 is subject to a discount series of 20%,10%,and 5%.determine the net price of the item

4.what is the equivalent single trade discount rate of a discount series 10% and 5%

5.Lee Distributors bought a shipment of laptops at a net price of Php 477.46 each,after discount of 15% ,10%,and 4%.what is the net price?​