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icezone

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Post Posted: 15-02-2014, 02:45:09 | Translate post to: ... (Click for more languages)

Salut ! As vrea si eu o formula pentru aflarea procentelor de aici :





Multumesc ...


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Fough

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Post Posted: 15-02-2014, 15:34:49 | Translate post to: ... (Click for more languages)

nu prea inteleg eu ce vrei sa aflii,condiserand ca aia iti dau procentele -.Cred ca vrei sa zici cum au aflat acele procente...poate...imparti costul de la fiecare unitate la valoarea initiala (25),imnultesti cu monezile alea...iti da alt numar,imprati numarul de monezi care ti-l dau ei la valoarea care ti-a dat tie,inmultesti cu 100,scazi 100 si-ti da procentajul ala.
Exemplu: pentru a 2-a 50/25-->2.2*60=120.140/120=1.1666-->16.666 %
pentru a 4-a : 300/25=12.12*60=720.1800/720=2.5 -->150 %.



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r3Mb

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Post Posted: 15-02-2014, 16:34:32 | Translate post to: ... (Click for more languages)

poi de ex sa afli 17% din 500 faci
500 : 17 *(inmultit) cu 100 , tu schimbi numerele in functie de caz

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icezone

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Post Posted: 15-02-2014, 19:05:17 | Translate post to: ... (Click for more languages)

Multumesc Mult !
M-am gandit mai bine ... si am gasit formula pentru toate (de care aveam nevoie)
Nu ca altele n-ar fii bune ... dar o vroiam mai exacta -
:
(Cant1/Pret1) / (NrCant/OricePret) = total1 / total2 = Diferenta * 100 - 100 = Procentul
Nu de alta dar imi trebuie doar o formula pentru PHP ... -

si astfel am facut asta :



Code:

$pachete = array(
     array(60, 24.99),
     array(140, 49.99),
     array(500, 99.99),
     array(1800, 299.99),
     array(3600, 499.99)
);

$impartitorul = $pachete[0][0] / $pachete[0][1];

for($i = 1; $i < count($pachete); ++$i)
            {
               $impartitul = $pachete[$i][0] / $pachete[$i][1];
               $total = round($impartitul,2) / round($impartitorul,2);
            $procentul = round($total , 2) * 100 - 100;

echo $procentul. ' %<br>';
            }
 


Si astfel pentru fiecare pachet imi arata cu cate procente este mai mare per lei fata de primul pachet .

Va Multumesc pentru ajutor !


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