Hi Kamran,

You can start by creating a new smart button in the product, for that, I suggest you extend the xml of the product. 

Here is the standard xml that creates the standard button (365 days) you can use it as a base to create your own button:

model="ir.ui.view" id="product_form_view_sale_order_button">
    name="name">product.product.sale.order
    name="model">product.product
    name="inherit_id" ref="product.product_normal_form_view"/>
    name="groups_id" eval="[(4, ref('sales_team.group_sale_salesman'))]"/>
    name="arch" type="xml">
        
name="button_box" position="inside">
            
        

        name="description" position="after">
            string="Warning when Selling this Product" groups="sale.group_warning_sale">
                name="sale_line_warn" nolabel="1"/>
                name="sale_line_warn_msg" colspan="3" nolabel="1"
                        attrs="{'required':[('sale_line_warn','!=','no-message')],'readonly':[('sale_line_warn','=','no-message')]}"/>
            
        
    

** of course you must create also your own custom field  sales_count and calculate it using a compute function

Then you just need to create a new action in the product by extending the py of the product.

Here is the standard action to open the sales of the last 365 days:

def action_view_sales(self):
    action = self.env.ref('sale.report_all_channels_sales_action').read()[0]
    action['domain'] = [('product_id', 'in', self.ids)]
    action['context'] = {
        'pivot_measures': ['product_uom_qty'],
        'active_id': self._context.get('active_id'),
        'search_default_Sales': 1,
        'active_model': 'sale.report',
        'time_ranges': {'field': 'date', 'range': 'last_365_days'},
    }
    return action

Here is the tricky part: if you don't calculate the domain in python you must create a new filter in the search portion of the xml, so then you can call this new filter in the action by passing its name by context.

Hope it helps you to get started.

in product.template

sales_count_custom = fields.Float(compute='_compute_sales_count_custom',string='90 Days Sale')

@api.depends('product_variant_ids.sales_count_custom')    def_compute_sales_count_custom(self):        for product inself:            product.sales_count_custom =float_round(sum([p.sales_count_custom for p in product.with_context(active_test=False).product_variant_ids]),precision_rounding=product.uom_id.rounding)        defaction_view_sales_custom(self):        action =self.env["ir.actions.actions"]._for_xml_id("sale.report_all_channels_sales_action")        action['domain']=[('product_id','in',self.ids)]        action['context']={            'pivot_measures':['product_uom_qty'],            'active_id':self._context.get('active_id'),            'search_default_Sales':1,            'active_model':'sale.report',            'time_ranges':{'field':'date','range':'last_90_days'},        }        return action

in view 

  <xpathexpr="//div[@name='button_box']"position="inside">                    <buttonclass="oe_stat_button"name="action_view_sales_custom"                        type="object"icon="fa-bar-chart-o"groups="sales_team.group_sale_salesman"help="Sold in the last 90 days"attrs="{'invisible': [('sale_ok', '=', False)]}">                        <divclass="o_field_widget o_stat_info">                            <spanclass="o_stat_value">                                <fieldname="sales_count_custom"widget="statinfo"nolabel="1"class="mr4"/>                                <fieldname="uom_name"/>                            span>                            <spanclass="o_stat_text">90 Daysspan>                        div>                    button>                xpath>