Calculations involving percentages of quantities. Working with increases and decreases as well as expressing a quantity as a percentage of another quantity.
Part ofMathsNumeracy
Sometimes shops offer discounts in the form of a percentage.
If the shop is offering \(25\%\) discount then we would work out \(25\%\) of the original price.
We would then subtract the answer from the original price to get the new price.
A shop is offering \(30\%\) discount on all goods. Howe much would you pay for an item normally priced at \(\pounds140\)?
\(30\%\) of \(\pounds140\)
\(= \frac{{30}}{{100}} \times 140\)
\(= \pounds42\)
New price \(= \pounds140 - \pounds42 = \pounds98\).
