PLEASE SHOW WORK

1. For the 4th of July, a large discount chain sells packages of red, white, and blue steamers for $3.00. Of 10,000 streamers, 8,500 sell at the original price, while the rest were marked down to $2.50 and 1,000 sold at that price. The last 500 sold at $1.50 each. What were the markdown dollars? What was the markdown percent?