Suppose a lunch consisting of a large hamburger, large fries and large soft drink at a fast food chain contains 1280 calories. A lunch consisting of a small hamburger, small fries and a small soft drink at the same fast food chain contains 740 calories. Find the percent change in calories from the smaller to the larger lunch. Round to the nearest hundredth of a percent.
A)72.97% increase
B)42.19% increase
C)42.19% decrease
D)72.97% decrease
E)57.81% increase

Question

Quizplus · Accepted Answer

The percent change in calories from the smaller to the larger lunch is calculated as $\frac{1280 - 740}{740} \times 100 = 72.97\%$, indicating a 72.97% increase.

Suppose a Lunch Consisting of a Large Hamburger, Large Fries