Percentage of a quantityWith a calculator

ExampleWhat is 23% of 40 kg

Example

What is 17% of £6.50?

Example

I pay 6% of my salary into a pension fund. How much do I pay

into my fund if my salary is £12450 per annum?

Example

Every year a car loses 15% of its value at the beginning of

that year. If it was originally worth £5000, what will it be

worth after 2 years?

Example

The population of Umbridge increased by 37% during the

years 1960-80.

If the population in 1960 was 447, what was the population

in 1980?