Hello Jaydeep bhai...

I have done same thing in sale order report with monetary field.

<span t-field="doc.amount_total" t-field-options="{&quot;widget&quot;: &quot;False&quot;}"/>

Hope this will help you...

Try this,

<span t-esc="float(o.amount_total)"/>

Try, this one

In .py

_columns = {
    'amount' : fields.float("amount", digits_compute=dp.get_precision('Account'))
    'company_id': fields.many2one('res.company', 'Company', required=True),
    'company_currency_id': fields.related('company_id','currency_id',type="many2one",
         relation="res.currency",string="Company Currency",readonly=True,store=True),
}

In .xml,

<field name="company_currency_id" invisible="1"/>
<field name="amount" widget="monetary" options="{'currency_field': 'company_currency_id'}"/>