Ai Damage not working

So i want to damage my ai, when after one shot, it instantly dies. It should normaly only get destroyed after 4 hits.
And i don’t know what i am doing wrong
Info:
-Health (Of AI) = 1,0
-Damage (when hit) = 0,25

Player BP:

AI BP:

Btw, i’ve tried to invert “Destroy Actor” and “Spawn Emitter”. Then i need 2 shots

You’ve got a math error here… your doing damage - health. assuming damage is less than total health, you’ll always get a negative number:

Yep you’re right thanks!