Floating points are awesome!

[Remi-Andre Olsen]

Try this in javascript:

0.58 * 100

The result:

[Denis Moreno]

Math.round(0.58*100);

or

(0.58*100).toFixed(0);

Also, python :

>>> 0.58*100
57.99999999999999

[Phil Ewels]

Easier than that in this case - offending number is in a HighCharts label which supports string formatting. So just a case of changing {y} to {y:,.0f}. Already done and about to commit.