Percentages??

[stublackett]

Hi,

 

I'm not sure how to work this, I think its best as a function but any suggestions or directions to where I can get help for this would be much appreciated

 

What I'm trying to do is calculate a new total price when a discount code is entered

 

So for instance : Item total is £100

 

An item code is entered (Its always going to be 10% Discount) so the total with the new discount will be £90 (£10 Discount)

 

How can I use PHP To calculate this?

 

Any help appreciated  :)

[conker87]

$total = 100;
$discount = 0.1;
$newtotal = 100 * (1 - $discount);

echo $newtotal;

Easy, no?

 

As a function:

function discount($total, $discount);
       {
              return $total * (1 - $discount);
       }

[stublackett]

$total = 100;
$discount = 0.1;
$newtotal = 100 * (1 - $discount);

echo $newtotal;

Easy, no?

 

As a function:

function discount($total);
       {
              return $total * (1 - $discount);
       }

 

Very easy Muchos Gracias!!