javascript - How to show the right percentage?

Question

fiddle: https://jsfiddle.net/252jxsjq/1/

how can I show 65 instead of 64.72343432...?

Finally,how can I make the number of clicks equal for all the user? For example, now if i click 60 times on a button, if I change the pc the times displayed are 0.

jQuery:

var counter = localStorage.getItem('rans') || 0;

$('.redanswer').click(function(){
     localStorage.setItem('rans', ++counter);
     $( '.bpercent' ).html( counter1 * 100 / (counter1+counter) + "%" );
     $( '.rpercent' ).html( counter * 100 / (counter1+counter) + "%" );

 });

var counter1 = localStorage.getItem('bans') || 0;

$('.blueanswer').click(function(){
     localStorage.setItem('bans', ++counter1);
     $( '.rpercent' ).text( counter * 100 / (counter1+counter) + "%" );
     $( '.bpercent' ).text( counter1 * 100 / (counter1+counter) + "%" );
});

Answer 1

Use Math.round Function of JavaScript.

$('.redanswer').click(function(){
 localStorage.setItem('rans', ++counter);
 $( '.bpercent' ).html( Math.round( counter1 * 100 / (counter1+counter) ) + "%" );
 $( '.rpercent' ).html( Math.round( counter * 100 / (counter1+counter) ) + "%" );
});

Local storage saves state or variable to client machine (or say browser). As Mike said, If you want to save value for all devices, than You will need some server side Implementations which can manage clicks counter for all users all around the world.