There is a widget Gauge to show the progress bars in kanban views. For that you have to create 2 fields to store rate and maximum rate.

For example

progress_rate = fields.Integer(string='Sample Rate')
maximum_rate = fields.Integer(string='Maximum Rate')

 Set widget="gauge" and  max_field.

<field name="progress_rate" widget="gauge" options="{'max_field': 'maximum_rate'}">

Preview ..

hope this will help you !

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