Question

How can I deduct a certain percentage from the outputted number and display a newly calculated number?

This is what I mean:

Original number is outputted by

<?= $number['originalnumber'] ?>

which on a user’s display shows up as, let’s say, number 199.

I want to deduct 3% from number 199, which results in 193.03 and display this new value instead of 199.

Basically calculating on the fly and outputting a new value, so the user never sees number 199 but only a new number 193.03

Mathematic formula is 199 – 199 * .03 = 193.03

So it would be something like this probably

<?= $number['originalnumber'] ?> - ( <?= $number['originalnumber'] ?> * 0.3 ) = display new value on user's screen.

I’m not exactly a programmer and have no idea how to do it, so the good line of code would be appreciated.

Answer 1

199 - 199 * .03 = 193.03

is

199 * 0.97 = 193.03

So

<?= $number['originalnumber'] * .97 ?>