i need help with these questions

A barbeque is listed for $681.96 less 38%, 17%, 1%. (a) What is the net price? (b) What is the total amount of discount allowed? (c) What is the exact single rate of discount that was allowed? (a) The net price is $ - (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.) (b) The total amount of discount allowed is $ - (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.) (c) The single rate of discount that was allowed is = %. (Round the final answer to two decimal places as needed. Round all intermediate values to six decimal places as needed.)A cafe latte was offered for sale at $4.12 at West Store. At East Store, the regular selling price of a similar cafe latte was $5.24. What rate of markdown would East Store have to offer to sell the cafe latte at the same price as West Store? The rate of markdown is -% (Round the final answer to two decimal places as needed. Round all intermediate values to six decimal places as needed.)A car accessory is sold for $53.34. The store's markup based on cost is 53%. (a) What is the cost of the car accessory? (b) What is the rate of markup based on selling price? (a) The cost of the car accessory is $ - (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.) (b) The rate of markup based on selling price is -% (Round the final answer to two decimal places as needed. Round all intermediate values to six decimal places as needed.)