A snow blower retails for $489. The dealers over head is 20% of cost, and normal operating

Question:

A snow blower retails for $489. The dealers over head is 20% of cost, and normal operating profit is 16 2/3% of cost.
a. What is the largest amount of markdown that will allow the to break even?
b. What rate of markdown will price the snow blower at cost? Dealer
A dealer in the securities market is an individual or firm who stands ready and willing to buy a security for its own account (at its bid price) or sell from its own account (at its ask price). A dealer seeks to profit from the spread between the...