Is end of period spotting still considered your period?

H

Towards the end of my period my bleeding always Peters down to brown spotting, should I still consider it a period day for charting? This morning I did have a little bit of red blood but the rest of the day it has been brown spotting. Would that be considered a “light” bleeding day? Is my period officially over when the brown spotting has ceased? My periods have always been this way and I’ve never known how it should actually be charted.