1. ## percentages without calculator

Hi.

I am really struggling to find a way to work out how to do percentages, via pencil and paper. Is there a simple way/method for me to use that I could apply to the following problem:-

25% of £4.99

2. Originally Posted by clarkos33
Hi.

I am really struggling to find a way to work out how to do percentages, via pencil and paper. Is there a simple way/method for me to use that I could apply to the following problem:-

25% of £4.99

25% = 1/4

Use basic division to find the answer of 1.2475 = £1.25 since we can only have 2dp in currency

3. hi
50 % of 4.99 is equal to $\displaystyle 4.99 \times \frac{1}{2}$
25 % of 4.99 is equal to $\displaystyle 4.99 \times \frac{1}{4}$
.....

4. hi
here's a Trick
if you wanna find the $\displaystyle 21 \%$ of $\displaystyle 4.99$ :
you know that $\displaystyle 21$ $\displaystyle \%$ $\displaystyle = 10 \% + 10 \%+ 1 \%$
$\displaystyle 10 \%$ of $\displaystyle 4.99$ is equal to $\displaystyle 0.499$.
$\displaystyle 1 \%$ of $\displaystyle 4.99$ is equal to $\displaystyle 0.0499$.
so $\displaystyle 21 \%$of $\displaystyle 4.99$ is equal $\displaystyle 0.499+0.499+0.0499 = 1.0479$.