Help me fix my damage macro

This is the code: !token-mod --set bar1_value|[[{@{selected|bar1}-[[?{Damage|0}]]}]] --report all|"/em {name} takes {bar1_value:change} damage." Most of the time, it works. But I run into this odd problem where trying to make a token take lethal damage (say it's at 10 HP and I'm assigning it 11) doesn't work. Only part of the damage is applied.  Alternatively, if you have a better damage macro that actually works, post it here! :)

!token-mod --set bar1_value|-[[(?{Enter Damage no +/-})]] --ids @{target|Target 1|token_id} /em damaged @{target|Target 1|token_name} for ?{Enter Damage no +/-}

!token-mod --set bar1_value|[[ {(@{selected|bar1}-[[?{Damage|0}]]),0}kh1 ]] --report all|"/em {name} takes {bar1_value:change} damage."

Thank you both! I'll try both yours out tonight.

Tried them both, and I think I prefer Vince's for single targets, because I'd rather use selected token as default. But I'll look at Bilbo's as the basis for a GM-only multi-target damage macro. Thanks again!