<spoiler> At 5:47 in the video, the combination is given by groups of fireworks being launched.
The combo is right to 23, full turn left to 34, right to 12.
Opening the safe shows the question "How many pesos?" The bag in front has 1500 on it and there are 10 bags in the safe. 1500*10=15000
The answer is 15000 </spoiler>