PHP simple math...

[dd_gamer]

I have an issue that needs to be corrected by can't figure the math part. The current code charges 50% but I need to change it to charge 60%... the issue is that the math is using "/2" to get the 50% so how do I change to 60%?

 

The current code :

// If shipping method is ground we only want to change half.
                if ($this->shipn[$num]=="Ground")
	            $return[$num][rate]=$return[$num][rate]/2;

	return $return;
}

 

 

[Jessica]

instead of /2 do *.6

50 percent is half. /2 = half. This is the same as *.5

So 60 percent is *.6

[PFMaBiSmAd]

50% is the same as multiplying by .5 (i.e. multiplying by 1/2), 60% is the same as multiplying by .6

 

I'm pretty sure your middle school and/or high school math teachers would be disappointed about now.

[synking]

if i am not mistaken you would need to change a lot of that formula as 60% can not be easily represented in a number.

 

you would need to use a formula of %/100 = is/of  so 60%/100 = is a % / of some number

[PFMaBiSmAd]

LOL. Don't make it harder than it really is.

[KevinM1]

LOL. Don't make it harder than it really is.

 

Especially considering that floating point is imprecise anyway.

[PFMaBiSmAd]

I just checked with a 5th grader and she correctly got that you multiply by 6/10 or .6 to find 60% of something.

[Jessica]

I just checked with a 5th grader and she correctly got that you multiply by 6/10 or .6 to find 60% of something.

 

I'm kind of disappointed in our smiley selection, I couldn't quite find one that expressed my glee in this comment.

[dd_gamer]

OK... I guess I'm "NOT" smarter than a 5th grader... but thanks for the help...