Percentage Increases: Methods for Calculations and Applications

The video tutorial explains percentage increase, a method to find a percentage of an amount and add it to the original value. It covers two main methods: the unitary method, useful in non-calculator settings, and the calculator method, which involves converting percentages to decimals. An advanced method using multipliers is also discussed, which simplifies calculations by incorporating the original value into the percentage increase. Examples include interest calculations and profit margins, demonstrating practical applications of these methods.

What is the primary purpose of calculating a percentage increase?

• To subtract a percentage from the original value

• To add a percentage of an amount to the original value

• To determine the percentage of a decrease

• To find the original value of an item

In the unitary method, how do you calculate 1% of a value?

• Divide by 100

• Multiply by 100

• Multiply by 10

• Divide by 10

How do you convert a percentage to a decimal in the calculator method?

• Divide by 10

• Multiply by 10

• Divide by 100

• Multiply by 100

What is the multiplier for increasing a value by 45%?

• 145

• 45

• 1.45

• 0.45

What does the '1' in the multiplier 1.45 represent?

• The percentage increase

• The original amount

• The final amount

• The decimal conversion