Saladin Akara Saladin Akara - 2 years ago 86
PHP Question

More elegant way of adding a percentage?

I'm wondering if there is a more elegant way of adding a percentage. For example, if I wanted to add 12% of

's value to
I'm doing:

$a = 100;
$a = $a + (($a / 100) * 12);

Which gives me
as the new value, of course. But I can't help but feel this is a little too verbose and there must be a better way of doing the percentage addition.

I tried:

$a = $a + 12%;

But, as expected this doesn't work. Before I consider writing a function myself to make this easier, is there a pre-existing way to do this?

Answer Source

Why not $a *= 1.12;?

"Percent" comes from latin "per centum", or "per hundred". One percent is 1/100. So twelve percent is 0.12 - twelve hundredths.

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