1. Problem of the Day Last week, you finished Level 2
You estimate that 200 people attended a school concert. The actual attendance was 240 people. Find the percent error.
Last week, you finished Level 2
of a video game in 32 minutes. Today, you finish Level 2 in 28 minutes. What is your
percent of change?
A rectangular frame has a length of 𝑓𝑜𝑜𝑡 and a width of 𝑓𝑜𝑜𝑡. What is the perimeter of the frame?
𝑓𝑜𝑜𝑡 b 𝑓𝑜𝑜𝑡 c 𝑓𝑜𝑜𝑡 d 𝑓𝑜𝑜𝑡

2. Homework 18. 25% 8. increase; 200% 20. increase; 100%
10. decrease; 30%
12. increase; 140%
14. increase; 176.3%

3. If it’s 20% off, it must be _______ on!
For a discount, subtract % from 100 before you calculate

6. Lets earn back 100% of that money PLUS more!
I bought these for $50
For a markup, add 100 to the % before you calculate

8. New York state tax is 8. 13%. If you paid $18
New York state tax is 8.13%. If you paid $18.16 for a shirt after tax that was originally marked 20.99, what was the sale price of the shirt? What was the percent discount you received?

9. Exit Ticket
A store purchases a gaming system for $180 and marks up the price by 25%. How much do they sell the gaming system for?
How much profit will they earn if they sell 6 systems?