javascript not showing exact value in calulations : I would like to know why there is always some difference in value,when i perform the below calcualtions.
```
<!-- begin snippet: js hide: false console: true babel: false -->

var amt=1000;
var cr= 3.02%;
var net = (cr/100)*amt;
alert(net);//shows 29.02 instead of 30.02

```

