1. Starter
Choose a starter, main course, sweet and a drink. Work out the basic cost and then how much it is with the service charge using a multiplier.

2. There are 35 sweets in a bag. Four of the sweets are orange flavour.
What percentage of sweets are orange flavour?
Start by writing the proportion of orange sweets as a fraction. 4 35
4 out of 35 =
Then convert the fraction to a percentage.
× 100% = 4 35
11.4%

3. Petra put £32 into a bank account
Petra put £32 into a bank account. After one year she received 80p interest.
What percentage interest rate did she receive?
To write 80p out of £32 as a fraction we must use the same units.
In pence, Petra gained 80p out of 3200p.
We then convert the fraction to a percentage. 80
3200
× 100% =
2.5%

5. 30%
33.6%
28.3%
3.8%
4.9%
69.4%
62.5%
21.7%
41.7%
9.5%

6. Percentage change is where we discover what percentage an amount has increased or decreased by.
Original amount
x 100

7. In this case the change is an increase.
A computer accessories shop increased the price of one of its printers from £80 to £100. Find the percentage increase in price.
£80
£100
Original Price
New Price
Percentage change =
change
original amount
x 100
In this case the change is an increase.
Percentage increase =
increase
original amount
x 100
Percentage increase = 20 80
x 100 = 25%

8. Find the percentage decrease in the cost of the car in the sale. (1 dp)
£34000
£35500
Original Price
Sale Price
Percentage change =
change
original amount
x 100
Percentage decrease =
1500
35 500
x 100 = 4.2%

9. Original Amount: £100
New Amount: £110
= 10% increase
Original Amount: £250
New Amount: £300
= 20% increase
Original Amount: £75
New Amount: £87.50
= 16.7% increase

10. Is the price of the items now the same as the original price?
A man in a shop decides to put his prices up by 10% as he needed more money.
However he found this didn’t work and reduced his prices back down by 10% .
Is the price of the items now the same as the original price?

12. Answers 1) 20% decrease 2) 20% increase
3) 12% decrease 4) 10.8% decrease
5) 20% decrease 6) 25% increase
7) 16% increase 8) 7.5% decrease
9) 13% increase 10) 25% increase
11) 33.3% decrease 12) 8.3% decrease
13) 16.7% increase 14) 4% increase
15) 10% increase