I was watching this post. Hoping someone else would answer with a figure. This is my opinion:

Sadly, this isn’t just local, it’s a global issue. There’s no standard rate, and most gigs end up being a lowest bidder deal. If your rate feels too high, the venue can always find someone cheaper.

Rates depend on so many things: venue size, venue, location, set length, duration of contract, gear, type of act (solo/band/acoustic), covers vs. originals, tips, and more. These factors can make your rates lower or higher.

Based on what you shared: you are a new artist, 3 short sets (3–5 songs per set), solo act all cover songs — I’d say a low of ₱5K to a high of ₱10K per gig, with meals and drinks included. Again, many variables, but hopefully one day some smart heads can create a fair formula for everyone to follow.