Question

im lovin it! 2
percent of change
take a look at the mcdonalds menu from 1972.
use the internet to find out the current price of the
following items, then find the percent increase
from the 70s to now!

Explanation:

Step1: <Formula for percent of change>

Percent of change \(=\frac{\text{Difference in Price}}{\text{70's Price}}\times100\%\)

Step2: <Calculating for \(1/4\) Pounder wl Cheese>

Difference in Price \( = 4.89\), 70's Price \(=0.70\)
Percent of change \(=\frac{4.89}{0.70}\times 100\%=\frac{489}{0.7}\% \approx 698.57\%\)

Step3: <Calculating for Filet - o - fish>

Difference in Price \( = 4.11\), 70's Price \(=0.48\)
Percent of change \(=\frac{4.11}{0.48}\times100\%=\frac{411}{0.48}\%= 856.25\%\)

Step4: <Calculating for Hamburger>

Difference in Price \( = 1.72\), 70's Price \(=0.28\)
Percent of change \(=\frac{1.72}{0.28}\times100\%=\frac{172}{0.28}\% \approx 614.29\%\)

Step5: <Calculating for Cheeseburger>

Difference in Price \( = 3.66\), 70's Price \(=0.33\)
Percent of change \(=\frac{3.66}{0.33}\times100\%=\frac{366}{0.33}\% = 1109.09\%\)

Step6: <Calculating for Fries>

Difference in Price \( = 2.73\), 70's Price \(=0.26\)
Percent of change \(=\frac{2.73}{0.26}\times100\%=\frac{273}{0.26}\%=1050\%\)

Step7: <Calculating for Apple Pie>

Difference in Price \( = 1.63\), 70's Price \(=0.26\)
Percent of change \(=\frac{1.63}{0.26}\times100\%=\frac{163}{0.26}\% \approx 626.92\%\)

Step8: <Calculating for Shake>

Difference in Price \( = 2.44\), 70's Price \(=0.35\)
Percent of change \(=\frac{2.44}{0.35}\times100\%=\frac{244}{0.35}\% \approx 697.14\%\)

Step9: <Calculating for Coke>

Difference in Price \( = 1.80\), 70's Price \(=0.15\)
Percent of change \(=\frac{1.80}{0.15}\times100\%=\frac{180}{0.15}\%=1200\%\)

Step10: <Calculating for Ice Cream Cone>

Difference in Price \( = 1.09\), 70's Price \(=0.20\)
Percent of change \(=\frac{1.09}{0.20}\times100\%=\frac{109}{0.2}\% = 545\%\)

Answer:

Item	Percent of Change
Filet - o - fish	\(856.25\%\)
Hamburger	\(614.29\%\)
Cheeseburger	\(1109.09\%\)
Fries	\(1050\%\)
Apple Pie	\(626.92\%\)
Shake	\(697.14\%\)
Coke	\(1200\%\)
Ice Cream Cone	\(545\%\)