[Pre-BB] MapleStory Formula Compilation

Bare Hands:
MAX = (STR * J + DEX) * Weapon Attack / 100
MIN = (STR * J * 0.1 * 0.9 + DEX) * Weapon Attack / 100
ATT equals floor((2*level+31)/3) and is capped at 31.

Okay, taking this picture, and inputting the stuff. :O

Weapon attack = 37

 Maths.

(What does "floor" mean?)
(2*level+31)/3
=(2*(40)+31)/3
=(80+31)/3
=(111)/3
=37

Max = 83.99

 Moar maths.

(STR*J+DEX)*Weapon Attack/100
=((5)*(4.2)+(206))*(37)/100
=(21+206)*37/100
=227*37/100
=8399/100
=83.99

Min = 76.9193

 Moar maths.

(STR*J*0.1*0.9+DEX)*Weapon Attack/100
=((5)*(4.2)*0.1*0.9+(206))*(37)/100
=(21*0.1*0.9+206)*37/100
=(2.1*0.9+206)*37/100
=(1.89+206)*37/100
=207.89*37/100
=7691.93/100
=76.9193

What went wrong?