Getting field value 0 if the calue is grater than 0

var J = Number(this.getField("V10").valueAsString);
var K = eval(this.getField("F10").valueAsString);
var d = Number(this.getField("H1").valueAsString);
var e = this.getField("D10").valueAsString;
var f = Number(this.getField("I1").valueAsString);

event.value = "";

if (e !== "") {
e = Number(e);
if (e === 0) {
event.value = "<LOD";
} else {
var total;
if (J !== 0 && f !== 0) {
total = (K * d) / (J * f);
event.value = total.toFixed(3);
}
}
}

Hi, 

in above script when I write 0/100 in K, the value appearing correct in E. But when I write 1/100 is F. Attached pdf link for file. 

Lab. 2.29.24_2 updated.pdf