How to format yaxis labels

[malithmk]

I want to format yaxislabels like this. but it is not working. filament v2

'yaxis' => [
'show' => true,
'labels' => [
'formatter' => function ($value, $index) {
return '$' . number_format($value, 2);
},
'show' => true,
'style' => [
'colors' => '#9ca3af',
'fontWeight' => 100,
]
]
],

[malithmk]