Storage is not a live calculation but calculated nightly for billing purposes.
Administrators have access to monitor daily storage and account usage through the Administration control panel and will be billed for the Peak Storage, the highest day's worth of storage, within their monthly billing cycle.
This means deleting content at the end of the month, before your billing cycle, will not reduce potential storage overages hit in that billing period.
** If you are on your own S3 storage the indicator may show red but can be disregarded as you are not paying for storage through Mediasilo.
If you have questions about your plan or storage please contact firstname.lastname@example.org for assistance.