Calculate the Net Price and Amount of Trade Discount (Use

Short Answer

Calculate the net price and amount of trade discount (use net price equivalent rate as well as single equivalent discount rate):
$$\begin{array} { | l | l | l | l | l | } \hline\text { Item } & \text { List Price } & \text { Chain Discount } & \text { Net Price } & \text { Trade Discount } \\\hline \begin{array} { l } \text { Troy-Bilt lawn } \\\text { mower }\end{array} & \$ 499 & 7 / 9 &? &? \\\hline \end{array}$$