4 cards to come, 28 outs???

[manku]

In my crazy high stakes home game, we play a version of criss cross hilo (three rows of three). Anyway, on the flop I had 4 unseen cards that could give me the nut low (I had A23). We play 9 low. I figured (with dead cards, corners) I had 22/42 outs for three cards and 26/42 for the middle. The numbers are slightly different, but lets use this.

What are my odds of making my low? Of course I missed - paint all over! I figure I'll make it at least 85% of the time, probably higher.

Thanks.