Question

There are 150 calories in a cup of whole milk and only 78 in a cup of skim milk. In switching to skim milk, find the percent of decrease in number of calories per cup The percent of decrease is ?

Answer 1

48%

Step-by-step explanation:

The percent of the decrease can be calculated as:

`\text{ \% decrease = }\frac{\text{ Initial value - Final value}}{Initial\text{ value}}*100`

So, replacing the initial value with 150 calories and the final value by 78 calories, we get:

`\text{ \% decrease = }(150-78)/(150)*100=48\text{ \%}`

Therefore, the percent of decrease is 48%