Financial Maths

140

Increase 100 by 40%

20%

Find the percentage decrease from 85 kg to 68 kg.

68.75%

The amount of water in a tank increases from 80 L to 135 L. What is the percentage increase?

$399

The price of a bicycle is increased by 60% to $638.40. Calculate the original price.

$17.18

A microwave oven is listed at $189 including GST. Calculate the GST.

$131.12

A necklace with a cost price of $149 is sold at a loss of 12%. Calculate the selling price.

$90

A skateboard was sold for $76.50. This was a loss of 15%. Calculate the cost price.

33.33%

Express 26 kg as a percentage of 78 kg, correct to 2 decimal places

$420

Find 100% of a quantity if 37% is $155.40.

30 kg

Find 15% of 200 kg

141.7%

An antique gun purchased for $1200 was later sold for $2900. Express the profit as a percentage of the cost price.

$8.90

Calculate the GST on a DVD player listed at $89 excluding GST.

$110

Calculate the pre-GST price of a tracksuit listed at $121 including GST.

210

Decrease 280 by 25%