Demon Slayer , pro come please =(

sry im too .. noob for my math and english

100 125 150 175 is ATT

I'll do a few boxes for you:
If you have 0% STR and 100 ATT, +1% STR = +0.978776ATT
If you have 60%STR and 300ATT, +1% STR = +1.8499ATT
If you have 300%STR and 700ATT, +1%STR = +1.7406ATT

hope this helps