Check the following:
Active clients – clients with status Inactive or Paused are not counted.
Open tasks – only uncompleted tasks count. Check whether the GHL sync is up to date.
Revenue – if a manual override is set for the month, the automatically calculated amount is not used.
Profit – costs that have not yet been added can temporarily show profit too high.
If numbers still don't match after a refresh, get in touch via the Conversation tab.