HA - Solax battery over 99% template

{% set last = states('input_datetime.solax_inverter_battery_1_capacity_last_over_99') %}
{% if last not in ['unknown', 'unavailable', 'none', ''] %}
  {{ ((as_timestamp(now()) - as_timestamp(last)) / 86400) | round(1) }}
{% else %}
  unknown
{% endif %}