*Assuming* Lets say in an hour your men can make up to 32 pc, so in 8 hours 256 pcs 256 pcs x 12 php= 3,072 php gross sale. so... 256 pcs /32 pcs= 8 bags cement x 235 per bag= 1,880 php 8 bags x 0.22 m3= 1.76 m3 x 200 per m3= 352 php 2 laborer x 300/day= 600 php .....1,880 + 352 + 600= 2,832 php material and labor Net sale: 3,072 - 2,832= 240 php/day 240 x 30 days= 7,200 /month (not bad) Deco block here in my province are sold way higher than yours at 25php to 35php a piece. So Im currently thinking of making it as a business!