Adding damage percentage to my attack when dual wielding ?

So what I'm trying to achieve is that, if I dual wield 2 stone swords in main and off hands, my attack damage would increase by 10%. means it would deal 5.5 damage each swing.

But this doesnt seem to work as intended as when i input the following code block, a husk dies with only 2 hits. Can anyone guide me through this ?

My code block :-

https://ibb.co/4s0pTMS