If you do not have a calculator - use https://www.desmos.com/scientific
Recommendation - use paper and pencil, record the above formula, work each question out on paper, and use a calculator to help you with the calculations.
We will do these five questions as a class.
Pay attention to formula and how it is used in the calculator.
a.) A plant's height increased from 30 cm to 45 cm. What is the percent change in height? _______
b.) A student's test score improved from 75 to 90. Calculate the percent change in the test score. _______
c.) The price of a shirt decreased from $40 to $30. What is the percent change in price? _______
d.) A company's revenue rose from $1,200,000 to $1,500,000. What is the percent change in revenue? _______
e.) A car's fuel efficiency improved from 20 miles per gallon to 25 miles per gallon. What is the percent change in fuel efficiency? _______
Question 2
2.
You will do the following five questions independently.
Use the percent change formula and your calculator to calculate the percent change for each of these.
a.) The population of a town decreased from 10,000 to 8,500. Calculate the percent change in population. _______
b.) A student's GPA increased from 3.0 to 3.5. What is the percent change in GPA? _______
c.) An athlete's race time improved from 12.0 seconds to 10.5 seconds. What is the percent change in race time? _______
d.) A book's price increased from $15 to $18. What is the percent change in the price of the book? _______
e.) A computer's memory capacity increased from 256 GB to 512 GB. Calculate the percent change in memory capacity. _______