Manipulating decimals

[Jarod]

Okay I've done the math, but I want to turn it around to a smaller number, this is how my math goes though:

 

Basically I have the number 0.778%, I want to turn that around to 7.78% though, is this possible?

 

To get 0.778 I want did  309 divided by 397.

 

 

[PHP Monkeh]

I'm not great at maths but does this achieve what you want?

 

$val = 309 / 397;

echo number_format($val * 10, 2);

 

Seems awfully simple so I'm not confident in my answer!

[wildteen88]

To move the decimal place by one multiply by 10

echo (309 / 397) * 10;

 

Okay I've done the math, but I want to turn it around to a smaller number,

7.78% is not smaller than 0.778%

[Jarod]

To move the decimal place by one multiply by 10

echo (309 / 397) * 10;

 

Okay I've done the math, but I want to turn it around to a smaller number,

7.78% is not smaller than 0.778%

 

I know it's bigger, which is why i mention manipulation. I want to manipulate it as 7.78, basically make it into a collusion.

 

EDIT:

I think substr() might be of use, should be, ill try it.

[jl5501]

I am an old C programmer so I prefer the C-like functions in php, and I would do this

 

$ans = sprintf("%0.2f", 309 / 397);

 

gives 0.78

[jl5501]

or if you want 10 times that, also formatted to 2 decimal places

 

$ans = sprintf("%0.2f", 309 / 397 * 10);