Sounds like government Math to me ? Let's see
1/2" pvc 9 pieces 4' long= 36' @.21 cents a foot= $7.56
1" pvc 6' @.40 cent = $2.40
1 bucket $4.00
1 sack Ready Mix = $3.15
20' Black quest pipe @.10 =$2.00
Total if I didn't miss or steal anything = $19.11
With no labor?
Merry Christmas Hope it helps
You are assuming quite a bit there. You assume he stole or had to pay for all his supplies. I can get everything on your list for free, and not stolen, with the exception of the redy mix. So, your price scheme is off by almost $16.00. I'll assume he can do the same thing I can, for the most part.
Merry Christmas to you, also.