# Study sets matching "percentages maths"

Study sets

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Percentage Increases

Percentage Decreases

Percentage Change

Successive percentage changes

(Percentage increase (as decimal ) + 1.0) x Original price

(100 - Percentage decrease as decimal) x Original price

New Price / Old Price = Multiplier... If it's an increase: Multi…

Example... A £100 airfare will increase by 15% next week and 10%…

Percentage Increases

(Percentage increase (as decimal ) + 1.0) x Original price

Percentage Decreases

(100 - Percentage decrease as decimal) x Original price

Percentage Increases

Percentage Decreases

Percentage Change

Successive percentage changes

(Percentage increase (as decimal ) + 1.0) x Original price

(100 - Percentage decrease as decimal) x Original price

New Price / Old Price = Multiplier... If it's an increase: Multi…

Example... A £100 airfare will increase by 15% next week and 10%…

Percentage Increases

(Percentage increase (as decimal ) + 1.0) x Original price

Percentage Decreases

(100 - Percentage decrease as decimal) x Original price

Common factor

Compound interest

Decimal

Denominator

A whole number that divides into two (or more) other numbers e…

This arises when interest on an investment is calculated and a…

A proportion that uses powers of 10 as place value. In the exa…

The bottom part of a fraction. For ⅝, the denominator is 8, wh…

Common factor

A whole number that divides into two (or more) other numbers e…

Compound interest

This arises when interest on an investment is calculated and a…

How do you change a fraction to a perce…

How do you change a decimal to a percen…

How do you change a percentage to a fra…

How do you change a percentage to a dec…

You times it by 100

You times it by 100

You divid it by 100

You divid it by 100

How do you change a fraction to a perce…

You times it by 100

How do you change a decimal to a percen…

You times it by 100

Price with VAT

Price without/before VAT

Price with mark up

Price before mark up

Original price x 114/100

Price with VAT x 100/114

Original price x 100+% mark up/100

Price with mark up x 100/100 + % mark up

Price with VAT

Original price x 114/100

Price without/before VAT

Price with VAT x 100/114

Decimal to fraction

Fraction to decimal

Percentage to fraction

Fraction to percentage

Put decimal as a whole number over 100/1000 & cancel

Divide numerator by denominator

Put percentage over 100 and cancel down

X 100

Decimal to fraction

Put decimal as a whole number over 100/1000 & cancel

Fraction to decimal

Divide numerator by denominator

How do you find a percentage of a numbe…

What is 8% of 40?

What is 160% of 18?

How do you increase a number by a perce…

Divide percentage by 100. Multiply number by the divided perce…

8% / 100 = 0.08... 40 x 0.08 = 3.2

160% / 100 = 1.6... 18 x 1.6 = 28.8

Find new percentage by adding percentage increase to 100%. Div…

How do you find a percentage of a numbe…

Divide percentage by 100. Multiply number by the divided perce…

What is 8% of 40?

8% / 100 = 0.08... 40 x 0.08 = 3.2

part/whole = n/100

part= whole x percent

original number to changed number, divi…

store price(1 + markup)=selling price

how do you do proportions

how do you do equations

how do you find percent change (ex. 10 to 15= 5/10= .5=50%)

how do you find selling price

part/whole = n/100

how do you do proportions

part= whole x percent

how do you do equations

If Sammy wanted to buy a new shirt for…

Lyla was out to eat with her friends an…

Sydney is out shopping she finds a real…

Louane was shopping in Paris and found…

14.00

10.38

Yes she will because the grand total is 11.17 and she has 16.0…

20.04

If Sammy wanted to buy a new shirt for…

14.00

Lyla was out to eat with her friends an…

10.38

A rate, number, or amount in each hundr…

Sometimes, rather than rounding off to…

A fraction represents a part of a whole…

Answers;... 20, 42, 15, 100, 35

What is a percentage?

What is a decimal place?

What is a fraction?

Work out 50% of:... 40, 84, 30, 200, 70

A rate, number, or amount in each hundr…

What is a percentage?

Sometimes, rather than rounding off to…

What is a decimal place?

Percentage to Fractions

Fractional Percentage to Fractions

Fraction to Percentage

Percentage to Decimal

Put percentage value over 100, and simplify the fraction. Eg 2…

Convert to an improper fraction, and multiply fraction denomin…

Multiply the fraction by 100/1, then simplify.

Write decimal as a fraction over 100, and then convert to a de…

Percentage to Fractions

Put percentage value over 100, and simplify the fraction. Eg 2…

Fractional Percentage to Fractions

Convert to an improper fraction, and multiply fraction denomin…

Percent

Proportion

Discount

Profit

A ratio whose denominator is 100.

The phrase that means two ratios are equal.

To offer for sale or sell at a reduced price. Also known as ma…

The ratio of such pecuniary gain to the amount of capital inve…

Percent

A ratio whose denominator is 100.

Proportion

The phrase that means two ratios are equal.