STAGE 1: Total cost for the pen construction #35,000
STAGE 2: Cost of your labor
STAGE 3: Cost of buying breeder snails called point of lay @ N400 each (100 Pieces) #40,000.
STAGE 4: Transportation of 100snails to Owner
STAGE 5: Cost feeding using special snail formulated feed #12,000 per 25kg bag. It Feeds the 100 snails for 3 months. 2 bags needed before harvest of snails for sale.
STAGE 6: Cost for buying fruits like pawpaw, watermelon for 6 months period for #1000) But you can get them free from fruit vendors or plant them
At harvest if you bought 100 snails when each snail is expected to lay eggs at least twice in 6 months and each snail can lay 100 eggs at a time. You multiply 10 by 300 that is 1,000 eggs in total you are likely to get. You can then sell off the parent stock and start breeding the baby snails to maturity.
If you sell each parent snail fully matured at #300 you will make a sale of N30,000 for the one hundred parent stock. Which you still have about 10,000 grower snails to grow to maturity.
Please consider mortality of say 20% hence you will have 8000 young snails.