Hitung

function hitungOCC() {
    var myForm  = document.form1;
    var RNA     = parseInt(myForm.txt_Rna.value); // RNA
    var RNO     = parseInt(myForm.txt_Rno.value); // RNO
    var Rev     = parseFloat(myForm.txt_Rev.value); // Revenue
    var RFB     = parseFloat(myForm.txt_RFB.value); // RFB
    var ROT     = parseFloat(myForm.txt_ROT.value); // ROT

    var OCC     = (RNO/RNA); // OCC
    var ARR     = (Rev/RNO); // ARR
    var TOT     = (Rev+RFB+ROT); // Total

    if (OCC > 0) {
        myForm.txt_OCC.value = OCC;
    } else {
        myForm.txt_OCC.value = 0;
    }

    if (ARR > 0) {
        myForm.txt_ARR.value = ARR;
        myForm.txt_TOT.value = TOT;
    } else {
        myForm.txt_ARR.value = 0;
        myForm.txt_TOT.value = 0;
    }
}