percentage applications

Change percentage = .......

• $final\ amount\ -\ orginal\ amount\$

• $orginal\ amount\ -final\ amount\ \$

• $\frac{change\ }{original\ }\times100\$

• $\left(\frac{change\ }{original\ }\times100\ \right)\ \%$

20 % of 2 500 is ........

• 25

• 500

• 100

• 50

32 cm is stretched to 40 cm then the percentage of change = ......

• 40 %

• 25 %

• 32 %

• 8 %

the cost drops from $136 to $119 then the percentage of change = ........

• 12.5 %

• 0.125

• -17

• 17 %

15% of a number = 150 then the number is ……….

• 100 %

• $\frac{100}{15}$

• 1000

• 1500

In a class of 40 pupils there are 24 boys and the other are girls find the percentage of girls.

• 60 %

• 16 %

• 100 %

• 40 %

22% of 1 tonne (in kg)

• 0.22

• 220

• 100

• 2.2

Ben earns $12,800 a year. About 15% is taken out for taxes. How much money left with him?

• $ 10880

• $ 1920

• $ 12785

• $ 12 000