Realistically a grocery budget of P200 per day for 2 adults and a child you would be existing but not living.
Basic rice is P30 to P35 per kilo now,lpg cooking gas is P720 per 11kg tank, a loaf of basic bread is P60, pork,chicken and fish have increased dramatically in the last 12 months.
I am not saying a P200 per day budget for 3 is impossible but it would certainly be a pretty meagre diet.
