Accepted answer

try this:

yaxis: {min: 0, max: 100}

see this jsfiddle example


taking help from above answer link mentioned in the above answer sets the max value with option

yaxis: { max: 100 },

on similar line min value can be if you want to set min-max value then

yaxis: {
   min: 0,     
   max: 100

if you are using highroller php library for integration if highchart graphs then you just need to set the option



alternatively one can use the setextremes method also,

yaxis.setextremes(0, 100);

or if only one value is needed to be set, just leave other as null

yaxis.setextremes(null, 100);

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