Maths logic

I know, and I wasn’t trying to ruin the fun, but since you’ve asked let’s use
B-U-L-L-S-H-I-T
2+21+12+12+19+8+9+20 = 103%

Since it is written B-U-L-L-S-H-I-T, it means 2-21-12-12-19-8-9-20 = -99%.

If we take out the - symbols and write BULLSHIT, it would mean BULLSHI*T = 165473280.

The easiest fix is to write it
B+U+L+L+S+H+I+T, except that it looks funny like that.