yea i guess i was wrong but idk why really

3:1 odds means we need to win 1/4 of the time to break even, meaning we need 25% equity , which we only have about 17%.

so u would need to find when 1 (amount we call)/ (4 (bet +pot) + x (extra amount of implied odds needed)) equals that 17% (obv inmy example above i used 16%)

so 1/ (4+x) = .17
1= .68 +.17x
.32= .17x
1.88=x

so as you can see using 1 percentage point difference (i used 16% in first example. and 17% in the second) actually makes a difference of about 40c or w/e, so you can see why the 2 + 4 rule has its advantages (speed and convenience at the table) and its disadvantages (accuracy) and by using 17 % instead of 16% i came to virtually the same answer as super