Understanding Percent Calculations

In this video, Mr. J explains how to calculate percentages using a calculator. He demonstrates the process with four examples: calculating 40% of 25, 5% of 60, 84% of 36, and 91% of 125. The key method involves converting the percentage to a decimal by dividing by 100 and then multiplying by the given number. Each example is broken down step-by-step to ensure understanding. The video concludes with a summary of the method and a thank you to viewers.

What is the first step in calculating a percentage of a number using a calculator?

• Add the percentage to the number

• Subtract the percentage from the number

• Convert the percentage to a fraction

• Convert the percentage to a decimal

How do you convert 40% to a decimal?

• Move the decimal point two places to the left

• Move the decimal point two places to the right

• Multiply by 100

• Divide by 10

What is 40% of 25?

• 5

• 10

• 15

• 20

What is the decimal form of 5%?

• 5.0

• 0.5

• 0.05

• 0.005

Calculate 5% of 60.

• 5

• 4

• 3

• 2

What is the decimal equivalent of 84%?

• 8.4

• 0.84

• 84.0

• 0.084

Find 84% of 36.

• 30.24

• 28.24

• 34.24

• 32.24

Convert 91% to a decimal.

• 91.0

• 0.091

• 9.1

• 0.91

What is 91% of 125?

• 112.75

• 111.75

• 113.75

• 114.75

What operation is used to find a percentage of a number?

• Division

• Subtraction

• Multiplication

• Addition