Show Percentage in Apex-Chart Blazor

I am using blazor apex-chart in .net 8 Blazor Wasm

How can i see the percentage of each value in Blazor apex-chart, right now my code is this which is not working

DataLabels = new DataLabels{    Enabled = true,    Formatter = @"function (val) {return val +"+'\u0022'+"%" +'\u0022'+"}"}

i want something like this but this code not working for me.