Below is a sample itinerary and estimated expenses on our trip to Guimaras and Iloilo. Note that I’ve excluded ticket fare, terminal fees, and food on the expenses. The grand total a person can spend if you base it on the sample itinerary is ~PHP 3,599. Assuming you don’t eat like a king in a feast, food is cheap around Iloilo.
For a group of 4 people, you could travel to Iloilo and Guimaras with a pocket money of around PHP 5,000 more or less, depending on your way of living all throughout your stay.